本領(lǐng)域涉及藥物化學(xué)領(lǐng)域,更具體地說,涉及一種新的2,5,6位取代嘧啶酮衍生物及其制備方法及其作為抗乙肝病毒藥物的應(yīng)用。
背景技術(shù):
乙型肝炎病毒(hepatitis B virus,HBV)感染所導(dǎo)致的急、慢性疾病,已經(jīng)對全世界人民的健康造成了很大的影響。它廣泛流行于世界各國,據(jù)WHO統(tǒng)計,全球有約20億人曾感染過HBV,其中3.6億人為慢性乙肝,每年死于慢性乙型肝炎相關(guān)疾病的患者達(dá)100萬。調(diào)查結(jié)果顯示,我國有7~8億人感染過HBV,人群乙肝病毒表面抗原(HBsAg)的攜帶率為10.34%,估計約有1.3億人為HBV攜帶者,且年新增乙肝感染者約200萬人。其中慢性乙肝患者約有2000~3000萬,每年死于慢性乙肝相關(guān)疾病的人數(shù)達(dá)30萬。據(jù)乙肝年報告的發(fā)病率數(shù)據(jù)仍顯示有顯著上升趨勢。乙型肝炎不僅嚴(yán)重影響現(xiàn)代人的身體健康,而且給社會、家庭帶來了沉重的經(jīng)濟負(fù)擔(dān),是全世界醫(yī)學(xué)界共同關(guān)注的重要課題。
目前,被批準(zhǔn)上市用于治療乙肝的藥物主要有兩類:免疫調(diào)節(jié)制劑和核苷類逆轉(zhuǎn)錄酶抑制劑。其中,前者包括α-干擾素和長效干擾素;后者包括拉米夫定、替比夫定、恩替卡韋、阿德福韋酯、替諾夫韋、克來夫定與恩曲他濱。
IFN是機體感染病毒時,宿主細(xì)胞通過抗病毒應(yīng)答產(chǎn)生的一組結(jié)構(gòu)類似、功能相近的低分子糖蛋白,是抗病毒感染最重要的一種細(xì)胞因子。主要分為α、β和γ三型,其中IFN-α和β具有直接抗病毒作用。干擾素-α2b最早由美國的Schering-Plough公司研制成功并于1992年經(jīng)FDA批準(zhǔn)上市用于治療病毒性肝炎,其主要作用是通過誘導(dǎo)宿主細(xì)胞產(chǎn)生特異性抗病毒因子,提高T細(xì)胞活性,同時抑制負(fù)性調(diào)節(jié)因子的分泌,誘導(dǎo)B細(xì)胞成熟,增加I類白細(xì)胞組織兼容性抗原的表達(dá),達(dá)到輔助淋巴細(xì)胞清除病毒感染的肝細(xì)胞的作用。近年來還發(fā)現(xiàn),干擾素有抗肝細(xì)胞纖維化的作用。目前,干擾素在抗HBV治療存在的主要問題是適用人群有限,可抑制病毒復(fù)制但無法清除病毒,其毒副作用也是普遍存在的。最常見的是發(fā)熱及流感樣綜合征,患者體重減輕、脫發(fā)、情緒激動,骨髓抑制致血細(xì)胞、血小板減少,輕度貧血,偶可發(fā)生神經(jīng)系統(tǒng)損傷,影響內(nèi)分泌系統(tǒng)功能,亦有產(chǎn)生干擾素抗體者。
核苷類逆轉(zhuǎn)錄酶抑制劑是目前治療乙肝的主要藥物,其能夠通過和HBV病毒的天然底物 dNTP競爭HBV病毒的結(jié)合位點,從而達(dá)到抑制HBV活性而發(fā)揮抗病毒作用。雖然核苷類抗HBV藥物的療效顯著,但由于用藥周期長、毒副反應(yīng)大、易產(chǎn)生耐藥性等缺點限制了其在臨床上的應(yīng)用,因此,研發(fā)具有高效低毒,新型的HBV藥物是科學(xué)家面前的一個十分迫切和重要的課題。
目前被批準(zhǔn)用于抗HBV的7種核苷類藥物都具有抗HIV活性。其中拉米夫定、替諾福韋、恩曲他濱已被FDA批準(zhǔn)用于HIV治療,而阿德福韋酯、恩替卡韋、替比夫定、克來夫定都有關(guān)于抗HIV活性的報導(dǎo)。HBV聚合酶與HIV逆轉(zhuǎn)錄酶具有同源性。因此人們會對一些具有良好抗HIV活性的藥物進行抗HBV活性篩選。Lee等人將非核苷類抗HIV-1試劑2,5-吡啶二羧酸類衍生物用于抗HBV的研究,并發(fā)現(xiàn)其具有良好活性。
S-DABO類化合物是抗HIV-1轉(zhuǎn)錄酶抑制劑,其具有結(jié)構(gòu)多樣、高效低毒等特性。但是沒有人關(guān)注過他的HBV活性。因而我們設(shè)計合成了具有抗HBV活性的2,5,6位取代嘧啶酮衍生物,并探究其作用機制,對于發(fā)展新型非核苷類抗HBV藥物,特別是對抗臨床常用藥物耐藥的藥物,具有特別重要的意義。
技術(shù)實現(xiàn)要素:
本發(fā)明人經(jīng)研究而制備了一系列2,5,6位取代嘧啶酮衍生物,這些化合物具有抗HBV活性。
本發(fā)明的目的是提供新的2,5,6位取代嘧啶酮衍生物。
本發(fā)明的另一個目的是提供上述衍生物的制備方法。
本發(fā)明的第三個目的是提供上述衍生物的應(yīng)用。
本發(fā)明的第四個目的是提供含有上述衍生物的藥物組合物及其應(yīng)用。
本發(fā)明是通過如下技術(shù)方案而實施:
一方面,本發(fā)明提供了新的2,5,6位取代嘧啶酮衍生物,即式(I)化合物,或其藥學(xué)上可接受的溶劑化物:
其中,
R1為3,4-二甲氧基苯基,苯并[d]三氮唑-1-基;
R2為4-硝基溴芐,4-氰基溴芐,4-碘溴芐,4-三氟甲基溴芐,3,5-二甲氧基溴芐, 2-硝基溴芐,3-氯溴芐,2-(4-硝基苯氧基)乙基,2-(4-甲基苯氧基)乙基,2-(4-溴苯氧基)乙基,環(huán)庚基,環(huán)己-2-烯-1-基;
R3為H,鹵素(如Cl、Br、I),N(CH3)2,CH(CH3)2
第二方面,本發(fā)明還提供了上述2,5,6位取代嘧啶酮衍生物的制備方法,其包括如下步驟:
上述各化合物中的取代基R1、R2與R3定義與本發(fā)明所提供的上述化合物中所定義的相同。
第三方面,本發(fā)明提供了上述2,5,6位取代嘧啶酮衍生物作為抗HBV藥物的應(yīng)用。本發(fā)明的式(I)化合物對HBV DNA以及HBeAg具有明顯的抑制活性。
第四方面,本發(fā)明還提供了包含上述新的2,5,6位取代嘧啶酮衍生物的藥物組合物及其藥學(xué)上可接受的溶劑化物作為抗HBV藥物的應(yīng)用。在該藥物組合物中含有效成分(式(I)化合物)的適合范圍從1.0毫克到500毫克每單位(片、膠囊或注射液);在這些藥物組合物里,通常有效成分的總質(zhì)量占所有成分總質(zhì)量的0.5%-95%。有效成分可以通過口服以固體劑型的形式,如膠囊,片劑,粉劑,或者以液體劑型形式,如糖漿,混懸液,也可以采用注射滅菌的液體劑型。
本發(fā)明提供以下藥物劑型:
片劑
大量的片劑可以通過傳統(tǒng)的制備方法制備,單位劑量如下:100mg本發(fā)明式(I)化合 物,0.2mg滑石粉,5mg硬脂酸鎂,275mg微晶纖維素,11mg淀粉,98.8mg乳糖。采用適當(dāng)?shù)陌绿岣呖煽谛曰蛘哌_(dá)到緩釋作用。
膠囊劑
大量的單位膠囊制備通過填充標(biāo)準(zhǔn)兩塊硬膠囊,每塊含有100mg粉末本發(fā)明式(I)的化合物,175mg乳糖,24mg滑石粉,6mg硬脂酸鎂。
注射劑
通過腸外給藥的藥物注射劑通過如下制備:攪拌1.5%(質(zhì)量)的本發(fā)明式(I)化合物和10%(體積)的丙二醇及水,得到的溶液加入氯化鈉配成等滲液并滅菌。
本發(fā)明的藥物組合物可單獨給藥也可與其它抗病毒藥物聯(lián)合用藥。被治療動物包括哺乳動物、爬行動物、甲殼動物、兩棲類、魚類、家禽類。主要范圍為哺乳動物特別是人。
另外需要指出,本發(fā)明化合物的使用劑量和使用方法取決于諸多因素,包括患者的年齡、體重、性別、自然健康狀況、化合物的活性強度、服用時間、代謝速度、病癥的嚴(yán)重程度,具體劑量和使用方法由主治醫(yī)師根據(jù)患者的具體病情判斷。
具體實施方式
為了進一步闡述本發(fā)明,下面給出一系列實施例。這些實施例完全是例證性的,它們僅用來對本發(fā)明進行具體描述,不應(yīng)當(dāng)理解為對本發(fā)明的限制。如無特殊說明,下述實施例中“減壓旋干溶劑”一般指“水泵減壓條件下用旋轉(zhuǎn)蒸發(fā)儀蒸干溶劑。
實施例1
化合物3a:3,4-二甲氧基苯乙酰乙酸乙酯
將8g處理過的Zn粉分散在干燥的25mLTHF中,滴加溴乙酸乙酯引發(fā)反應(yīng),回流40min后將354mg(2.0mmol)3,5-二甲氧基苯乙腈固體加入反應(yīng)瓶中,0.5mL(4.4mmol)溴乙酸乙酯溶解在3mL THF中滴入反應(yīng)液中,繼續(xù)加熱回流1h。待反應(yīng)冷卻,加入10mL THF稀釋,用20mL 50%K2CO3猝滅反應(yīng),常溫下繼續(xù)攪拌1h,抽濾掉Zn粉,所得濾液分層,水層用10mL×2次THF萃取,合并有機相,加入2N鹽酸溶液30mL,繼續(xù)室溫攪拌2h,減壓蒸去THF并用CH2Cl2萃取水層,用飽和NaHCO3溶液洗3次,Na2SO4干燥除水,減壓蒸餾得化合物3a的粗品,直接用于下一步反應(yīng)。
實施例2
化合物3b:(苯并[d]三唑-1-基)乙酰乙酸乙酯
將0.5mol的丙二酸二乙酯的鉀鹽置于800mL無水乙睛中,依次加入0.595mol的無水MgCl2,0.717mol Et3N,室溫攪拌2個小時,得到反應(yīng)液A。將0.25mol的2-(苯并[d]三唑-1-基)乙酸和0.275mol的N,N-羰基二咪唑置于300mL乙睛中反應(yīng)15分鐘,得到反應(yīng)液B。將反應(yīng)液B倒入反應(yīng)液A中,室溫攪拌12h后回流2h,TLC跟蹤至反應(yīng)完全。冰浴條件下滴加13%HCl 150mL,滴完攪拌10min,分層將有機層溶劑蒸干,再加入150mL乙酸乙醋。有機相分別用飽和NaHCO3與飽和NaCl溶液洗滌3次,無水MgSO4干燥,減壓蒸餾得化合物3b的粗品,直接用于下一步反應(yīng)。
實施例3
化合物4a:6-(3,5-二甲氧基芐基)-2-硫代-2,3-二氫嘧啶-4(1H)-酮
將6.5g Na切成小塊加入到285mL乙醇溶液中,攪拌使其完全溶解,再加入14.72g硫脲,微熱攪拌20min,加入19.46g(0.07mol)3,4-二甲氧基苯乙酰乙酸乙酯(3a),回流6h,溶液呈橙黃色,TLC檢測反應(yīng)完全,蒸干乙醇,用少量水再溶解,用2N鹽酸調(diào)pH至3左右,析出大量黃白色固體,用乙醇重結(jié)晶,得白色產(chǎn)物。
實施例4
化合物4b:6-(苯并[d]三氮唑-1-基)甲基-2-硫代-2,3-二氫嘧啶-4(1H)-酮
化合物4b的制備方法與化合物4a相同。
通式I化合物的制備
化合物5a2-5a13,5b1-5b8均按照合成化合物5a1的操作方法制備,化合物6a2-6a13,6b1-6b8均按照合成化合物6a的操作方法制備。
實施例5
化合物5a1:6-(3,4-二甲氧基芐基)-2-(4-硝基芐硫基)嘧啶-4(3H)-酮
將77mg(0.36mmol)對硝基溴芐,100mg(0.36mmol),6-(3,4-二甲氧基芐基)-2-硫代-2,3-二氫嘧啶-4(1H)-酮以及99mg(0.72mmol)K2CO3加入到2mL的DMF中,常溫攪拌10min后60V電壓加熱,3h后TLC檢測反應(yīng)完全,加入少量水,用2N鹽酸溶液調(diào)pH至酸性,用20mL乙酸乙酯萃取反應(yīng)液3次,合并有機相,飽和NaCl溶液洗滌3次,無水Na2SO4干燥除水,最后柱色譜分離,得到白色固體85mg。
Yield:63%.mp:203-204℃.1H NMR(400MHz,CDCl3)δ:3.779(s,2H,ArCH2),3831(s,3H,OCH3),3.884(s,3H,OCH3),4.414(s,2H,SCH2),6.024(s,1H,5-H),6.730-6.822(m,3H,ArH),7.392(m,2H,ArH),8.052(m,2H,ArH),13.315(s,1H,NH);13C NMR(100MHz,CDCl3)δ:33.514,43.455,55.960,108.620,111.359,112.693,121.589,123.634,129.954,144.572,147.191,148.205,149.140,159.371,165.728,168.296;MS(ESI):m/z,412.42[M-H]-.
實施例6
化合物5a2:6-(3,4-二甲氧基芐基)-2-(4-氰基芐硫基)嘧啶-4(3H)-酮
Yield:53%.mp:208-209℃.1H NMR(400MHz,DMSO):3.702(s,3H,OCH3),3.727(s,2H,ArCH2),3.737(s,3H,OCH3),4.737(s,2H,SCH2),6.048(s,1H,5-H),6.756-6.840(m,3H,ArH),7.446-7.466(d,2H,o-ArH,J=8Hz),7.641-7.661(d,2H,m-ArH,J=8Hz),12.538(s,1H,NH);13CNMR(100MHz,DMSO)δ:33.292,42.744,55.941,55.989,110.235,112.415,113.700,119.196,121.768,130.384,132.566,148.049,149.138;MS(ESI):m/z,392.23[M-H]-.
實施例7
化合物5a3:6-(3,4-二甲氧基芐基)-2-(2-(4-硝基苯氧基)乙硫基)-4(3H)-酮
Yield:46%.mp:206-208℃,1H NMR(400MHz,DMSO)δ:3.496-3.527(t,2H,SCH2),3.667(s,3H,OCH3),3691(s,2H,ArCH2),3.703(s,3H,OCH3),4.261-4.293(t,2H,OCH2),5.988(s,1H,5-H),6.780(m,2H,ArH),6.882(s,1H,ArH),7.106-7.128(d,2H,o-ArH,J=8.8Hz),8.171-8.194(d,2H,m-ArH,J=9.2Hz),12.573(s,1H,NH);13C NMR(100MHz,DMSO)δ:28.879,42.749,55.860,67.289,112.229,113.554,115.467,121.598,126.312,30.611,141.461,147.972,149.060,163.819,170.789;MS(ESI):m/z,392.23[M-H]-.
實施例8
化合物5a4:6-(3,4-二甲氧基芐基)-2-(4-碘芐硫基)嘧啶-4(3H)-酮
Yield:47%.mp:180-181℃.1H NMR(400MHz,DMSO)δ:3.713(s,3H,OCH3),3.727(s,2H,ArCH2),3.750(s,3H,OCH3),4.293(s,2H,SCH2),6.003(s,1H,5-H),6.719-6.969(m,3H,ArH),7.049-7.070(d,2H,o-ArH,J=8.4Hz),7.537-7.558(d,2H,m-ArH,J=8.4Hz),12.544(s,1H,NH); 13C NMR(100MHz,DMSO)δ:32.611,42.268,55.486,93.032,111.847,113.150,121.278,130.170,131.277,136.978,137.969,147.508,148.599;MS(ESI):m/z,493.19[M-H]-.
實施例9
化合物5a5:6-(3,4-二甲氧基芐基)-2-(4-三氟甲基芐硫基)嘧啶-4(3H)-酮
Yield:50%.mp:172-174℃.1H NMR(400MHz,CDCl3)δ:3.806(s,2H,ArCH2),3.847(s,3H,OCH3),3.886(s,3H,OCH3),4.419(s,2H,SCH2),6.034(s,1H,5-H),6.761-6.813(m,3H,ArH),7.363-7.382(d,2H,o-ArH,J=7.6Hz),7.475-7.494(d,2H,m-ArH,J=7.6Hz);13C NMR(100MHz,CDCl3)δ:33.869,43.402,55.906,108.386,111.357,112.616,121.621,125.426,129.464,140.944,148.152,149.123,159.883,165.676,168.230;MS(ESI):m/z,435.38[M-H]-.
實施例10
化合物5a6:6-(3,4-二甲氧基芐基)-2-(3,5-二甲氧基芐硫基)嘧啶-4(3H)-酮
Yield:48%.mp:162-163℃.1H NMR(400MHz,CDCl3)δ:3.762(s,6H,OCH3),3.791(s,2H,ArCH2),3.849(s,3H,OCH3),3.880(s,3H,OCH3),4.372(s,2H,SCH2),5.965(s,1H,5-H),6.364(s,1H,p-ArH),6.515(s,2H,ArH),6.773-6.814(d,3H,ArH),13.253(s,1H,NH);13C NMR(100MHz, CDCl3)δ:34.936,43.634,55.324,55.829,55.939,99.626,107.158,108.252,108.290,111.351,112.522,121.598,129.365,138.493,148.027,149.036,160.378,160.845,168.512;MS(ESI):m/z,427.41[M-H]-.
實施例11
化合物5a7:6-(3,4-二甲氧基芐基)-2-(2-(4-甲基苯氧基)乙硫基)嘧啶-4(3H)-酮
Yield:51%.mp:200℃.1H NMR(400MHz,DMSO)δ:2.219(s,3H,PhCH3),3.440-3.472(t,2H,SCH2),3.673-3.692(d,8H,OCH3;ArCH2),4.062-4.094(t,2H,OCH2),5.963(s,1H,5-H),6.769-6.820(m,4H,ArH),6.889(s,1H,ArH),7.062-7.082(d,2H,m-ArH,J=8Hz),12.620(s,1H,NH);13C NMR(100MHz,DMSO)δ:20.522,29.255,55.835,66.213,112.164,113.481,114.708,121.613,129.912,130.316,147.935,149.000,156.408;MS(ESI):m/z,303.23[M-H]-.
實施例12
化合物5a8:6-(3,4-二甲氧基芐基)-2-(2-(4-溴苯氧基)乙硫基)嘧啶-4(3H)-酮
Yield:47%.mp:208-209℃.1H NMR(400MHz,DMSO)δ:3.491-3.522(t,2H,SCH2),3.666(s,3H,OCH3),3.688(s,2H,ArCH2),3.701(s,3H,OCH3),4.260-4.291(t,2H,OCH2),5.982(s,1H,5-H),6.750-6800(m,2H,ArH),6.882(s,1H,ArH),7.112-7.132(d,2H,o-ArH,J=8Hz),8.174-8.194(d,2H,m-ArH,J=8Hz),12.717(s,1H,NH);13C NMR(100MHz,DMSO)δ:28.859,42.655,55.866,67.299,112.207,113.530,115.473,121.587,126.324,130.623,132.299,141.446,147.947,149.040,163.824;MS(ESI):m/z,477.51[M-H]-.
實施例13
化合物5a9:6-(3,4-二甲氧基芐基)-2-(環(huán)庚基硫基)嘧啶-4(3H)-酮
Yield:26%.mp:261-263℃.1H NMR(400MHz,DMSO)δ:1.235-1.975(m,12H,SCHCH12),3.664(s,2H,SCH2),3.717(s,3H,OCH3),3.730(s,3H,OCH3),3.878(m,1H,SCH),5.922(s,1H,5-H),6.784-6.978(m,3H,ArH),12.362(s,1H,NH);13C NMR(100MHz,DMSO)δ:22.310,25.491,27.597,33.117,34.012,42.425,44.920,55.401,55.506,103.365,111.636,113.119,121.215,130.292,147.516,148.569,156.262,161.042;MS(ESI):m/z,373.45[M-H]-.
實施例14
化合物5a10:6-(3,4-二甲氧基芐基)-2-(環(huán)己-2-烯-1-基硫基)嘧啶-4(3H)-酮
Yield:44%.mp:159-160℃.1H NMR(400MHz,CDCl3)δ:1.689-2.056(m,6H,CH2),3.743(s,2H,ArCH2),3.865(s,3H,OCH3),3.875(s,3H,OCH3),4.624(s,1H,CH),5.717-5.893(m,2H,CH),5.983(s,1H,5-H),6.778-6.810(m,3H,ArH),13.068(s,1H,NH);13C NMR(100MHz,CDCl3)δ:19.592,24.796,28.994,41.658,43.654,55.833,55.978,107.886,111.345,112.643,121.587,125.411,129.672,131.897,147.978,148.975,160.783,165.690,168.443;MS(ESI):m/z,357.38[M-H]-.
實施例15
化合物5a11:6-(3,4-二甲氧基芐基)-2-(2-硝基芐硫基)嘧啶-4(3H)-酮
Yield:57%.mp:160-161℃.1H NMR(400MHz,CDCl3)δ:3.799(s,2H,ArCH2),3852(s,3H,OCH3),3.892(s,3H,OCH3),4.737(s,2H,SCH2),6.048(s,1H,5-H),6.756-6.840(m,3H,ArH),7.321-7.407(m,3H,ArH),8.041-8.034(d,1H,ArH),13.084(s,1H,NH);13C NMR(100MHz,CDCl3)δ:31.362,43.462,55.909,55.988,108.514,111.378,112.465,121.723,125.123,128.686,129.629,132.520,133.373,133.493,148.008,149.098,160.137,165.538,167.953;MS(ESI):m/z,412.42[M-H]-.
實施例16
化合物5a12:6-(3,4-二甲氧基芐基)-2-(3-氯芐硫基)嘧啶-4(3H)-酮
Yield:66%.mp:161-162℃.1H NMR(400MHz,CDCl3)δ:3.081(s,2H,ArCH2),3850(s,3H,OCH3),3.889(s,3H,OCH3),4.361(s,2H,SCH2),6.004(s,1H,5-H),6.757-6.848(m,3H,ArH),7.147-7239(m,3H,ArH),7.358(s,1H,ArH),13.021(s,1H,NH);13C NMR(100MHz,CDCl3)δ:33.933,43.539,55.859,55.956,108.415,111.376,112.501,121.638,127.287,127.759,129.329,129.748,134.203,138.735,148.058,149.067,159.082,165.551,168.350;MS(ESI):m/z,401.34[M-H]-.
實施例17
化合物5a13:6-(3,4-二甲氧基芐基)-2-(3-甲氧基芐硫基)嘧啶-4(3H)-酮
Yield:54%.mp:181℃.1H NMR(400MHz,CDCl3)δ:3.784(s,3H,OCH3),3.797(s,2H,ArCH2),3848(s,3H,OCH3),3.887(s,3H,OCH3),4.399(s,2H,SCH2),5.962(s,1H,5-H),6.773-6.899(m,6H,ArH),7.155-7.194(m,1H,ArH),13.049(s,1H,NH);13C NMR(100MHz,CDCl3)δ:34.592,43.573,55.206,55.837,55.953,108.227,11.344,112.518,113.137,114.727,121.627,129.558,137.872,148.025,149.041,159.683,160.356,165.569,168.361;MS(ESI):m/z,397.50[M-H]-.
實施例18
化合物5b1:6-(苯并[d]三氮唑-1-基)甲基-2-(4-硝基芐硫基)嘧啶-4(3H)-酮
Yield:45%.mp:223-224℃.1H NMR(400MHz,DMSO)δ:4.178(s,2H,ArCH2),5.871(s,2H,SCH2),6.159(s,1H,5-H),7.214-7.235(d,2H,o-ArH,J=8.4Hz),7.372-7.409(t,1H,ArH),7.506-7.543(t,1H,ArH),7.29-7.850(d,1H,ArH),7.827-7.847(d,2H,m-ArH,J=8Hz),8.042-8.063(d,1H,ArH);13C NMR(100MHz,DMSO)δ:32.743,55.346,111.250,119.612.123.666,124.527,128.016,130.222,133.901,145.640,146.382,146.808;MS(ESI):m/z,393.18[M-H]-.
實施例19
化合物5b2:6-(苯并[d]三氮唑-1-基)甲基-2-(4-氰基芐硫基)嘧啶-4(3H)-酮
Yield:36%.mp:221-222℃.1H NMR(400MHz,DMSO)δ:4.121(s,2H,ArCH2),5.868(s,2H,SCH2),6.148(s,1H,5-H),7.146-7.186(d,2H,o-ArH,J=8Hz),7.383-7.421(t,1H,ArH),7.514-7.559(m,3H,ArH),7.834-7.855(d,1H,ArH),8.068-8.-8.089(d,1H,ArH),12.757(s,1H,NH);13C NMR(100MHz,DMSO)δ:33.058,51.547,110.232,111.257,119.137,119.668,124.537,128.018,130.024,132.495,133.921,144.149,145.644;MS(ESI):m/z,373.19[M-H]-.
實施例20
化合物5b3:6-(苯并[d]三氮唑-1-基)甲基-2-(2-(4-硝基苯氧基)乙硫基)嘧啶-4(3H)-酮
Yield:44%.mp:217-218℃.1H NMR(400MHz,DMSO)δ:3.155(t,2H,ArCH2),3.805(t,2H,OCH2),5.863(s,2H,SCH2),6.101(s,1H,5-H),6.962-6.984(d,2H,o-ArH,J=8.8Hz),7.375-7.413(t,1H,ArH),7.536-7.575(t,1H,ArH),7.877-7.898(d,1H,ArH),8.035-8.056(d,1H,ArH),8.203-8.225(d,2H,m-ArH,J=8.8Hz),12.851(s,1H,NH);13C NMR(100MHz,DMSO)δ:29.020,51.381,66.740,111.384,115.386,119.618,124.495,126.335,128.002,134.073,141.462,145.518,163.657;MS(ESI):m/z,423.23[M-H]-.
實施例21
化合物5b4:6-(苯并[d]三氮唑-1-基)甲基-2-(4-碘芐硫基)嘧啶-4(3H)-酮
Yield:36%.mp:202-204℃.1H NMR(400MHz,DMSO)δ:3.990(s,2H,ArCH2),5.867(s,2H,SCH2),6.124(s,1H,5-H),6.747-6.766(d,2H,o-ArH,J=7.6Hz),7.436-7.549(m,4H,ArH),7.859-7.880(d,1H,ArH),8.077-8.-8.098(d,1H,ArH),12.822(s,1H,NH);13C NMR(100MHz,DMSO)δ:32.957,51.601,93.520,111.347,119.635,124.543,128.013,131.439,133.955,137.389,145.657,170.797;MS(ESI):m/z,474.34[M-H]-.
實施例22
化合物5b5:6-(苯并[d]三氮唑-1-基)甲基-2-(4-三氟芐基硫基)嘧啶-4(3H)-酮
Yield:43%.mp:178-180℃.1H NMR(400MHz,DMSO)δ:4.133(s,2H,ArCH2),5.880(s,2H,SCH2),6.162(s,1H,5-H),7.159-7.179(d,2H,o-ArH,J=8Hz),7.421-7.550(m,4H,ArH), 7.850-7.871(d,1H,ArH),8.056-8.078(d,1H,ArH),12.817(s,1H,NH);13C NMR(100MHz,DMSO)δ:32.835,51.590,111.296,119.621,124.521,125.402,125.437,127.994,133.936,145.669,170.786;MS(ESI):m/z,416.27[M-H]-.
實施例23
化合物5b6:6-(苯并[d]三氮唑-1-基)甲基-2-(3,5-二甲氧基芐硫基)嘧啶-4(3H)-酮
Yield:9%.mp:111-112℃.1H NMR(400MHz,DMSO)δ:3.774(s,6H,OCH3),4.186(s,2H,ArCH2),5.682(s,2H,SCH2),5.742(s,1H,5-H),6.368(s,1H,ArH),6.428(s,2H,ArH),7.325-7.363(t,1H,ArH),7.488-7.524(t,1H,ArH),7.810-7.831(d,1H,ArH),7.990-8.011(d,1H,ArH),13.113(s,1H,NH);13C NMR(100MHz,DMSO)δ:35.136,51.930,55.366,99.722,107.136,107.431,109.423,120.256,124.198,127.878,137.591,146.079,160.914,161.499,162.266,164.671;MS(ESI):m/z,408.30[M-H]-.
實施例24
化合物5b7:6-(苯并[d]三氮唑-1-基)甲基-2-(2-(4-甲基苯氧基)乙硫基)嘧啶-4(3H)-酮
Yield:37%.mp:176℃.1H NMR(400 MHz,DMSO)δ:2.227(s,3H,PhCH3),3.106(t,2H,SCH2),3.608(t,2H,OCH2),5.847(s,2H,ArCH2),6.072(s,1H,5-H),6.628-6.648(d,2H,o-ArH,J=8Hz),7.061-7.081(d,2H,m-ArH,J=8Hz),7.403-7.440(t,1H,ArH),7.541-7.579(t,1H,ArH),7.875-7.896(d,1H,ArH),8.066-8.-8.086(d,1H,ArH),12.795(s,1H,NH);13C NMR(100MHz,DMSOδ:20.515,29.718,51.429,111.414,114.635,119.612,124.482,127.612,129.914,130.261,134.107,145.579,156.310;MS(ESI):m/z,392.23[M-H]-.
實施例25
化合物5b8:6-(苯并[d]三氮唑-1-基)甲基-2-(2-(4-溴苯氧基)乙硫基)嘧啶-4(3H)-酮
Yield:36%.mp:182-183℃.1H NMR(400MHz,DMSO)δ:3.094-3.123(t,2H,ArCH2),3.617-3.645(t,2H,OCH2),5.854(s,2H,SCH2),6.079(s,1H,5-H),6.718-6.740(d,2H,o-ArH,J=8.8Hz),7.437-7.578(m,4H,ArH),7.875-7.896(d,1H,ArH),8.061-8.082(d,1H,ArH),12.840(s,1H,NH);13C NMR(100MHz,DMSO)δ:29.360,51.399,111.415,112.657,117.071,119.622,124.051,128.000,132.598,134.077,145.543,157.691;MS(ESI):m/z,458.20[M-H]-.
實施例26
化合物6a1:6-(3,4-二甲氧基芐基)-2-(4-硝基芐硫基)-5-碘代嘧啶-4(3H)-酮
將70mg(0.169mmol)6-(3,4-二甲氧基芐基)-2-(4-碘芐硫基)嘧啶-4(3H)-酮(5a1),42mg(0.186mmol)NIS加入到1mL的DMF中,冰浴攪拌過夜,加冰水使產(chǎn)物析出,抽濾,得白色固體52mg。
Yield:57%.mp:264-266℃.1H NMR(400MHz,DMSO)δ:3682(s,3H,OCH3),3.709(s,3H,OCH3),4.031(s,2H,ArCH2),4.410(s,2H,SCH2),6.707-6.727(d,1H,ArH),6.826-6.846(d,1H,ArH),6.938(s,1H,ArH),7.420-7.441(d,2H,o-ArH,J=8.4Hz),7.984-8.005(d,2H,m-ArH,J=8.4Hz),12.964(s,1H,NH);13C NMR(100MHz,DMSO)δ:33.076,46.167,55.871,112.232,113.565,121.286,123.712,130.181,130.749,146.690,146.828,148.103,149.029;HRMS(ESI):m/z,calcd.for C20H17N3O5SI[M-H]-:537.9934,found537.9938.
實施例27
化合物6a2:6-(3,4-二甲氧基芐基)-2-(4-氰基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:47%.mp:241-242℃.1H NMR(400MHz,DMSO)δ:3.688(s,3H,OCH3),3.723(s,3H,OCH3),4.028(s,2H,ArCH2),4.381(s,2H,SCH2),6.709-6.729(d,1H,ArH),6.842-6.863(d.1H,ArH),6.937-6.941(d,1H,ArH),7.367-7.388(d,2H,o-ArH,J=8.4Hz),7.604-7.624(d,2H,m-ArH,J=8Hz),13.024(s,1H,NH);13C NMR(100MHz,DMSO)δ:33.429,55.913,55.980,110.277,112.402,113.627,119.167,121.338,130.114,130.256,132.550,144.295,148.141,149.067;HRMS(ESI):m/z,calcd.for C21H17N3O3SI[M-H]-:518.0035,found518.0034.
實施例28
化合物6a3:6-(3,4-二甲氧基芐基)-2-(2-(4-硝基苯氧基)乙硫基)-5-碘代嘧啶-4(3H)-酮
Yield:40%.mp:210-212℃.1H NMR(400MHz,DMSO)δ:3.457-3.489(t,2H,SCH2),3.649(s,3H,OCH3),3.697(s,3H,OCH3),3.998(s,2H,ArCH2),4.176-4.208(t,2H,OCH2),6.746-6.793(m,2H,ArH),6.903-6.931(m,2H,ArH),7.050-7.073(d,2H,o-ArH,J=9.2Hz),8.151-8.174(d,2H,m-ArH,J=9.2Hz),13.053(s,1H,NH);13C NMR(100MHz,DMSO)δ:29.985,46.148,55.632,67.083,112.180,113.364,115.407,121.181,126.293,130.120,141.459,148.048,148.975,163.755,179.849;MS(ESI):m/z,568.26[M-H]-.
實施例29
化合物6a4:6-(3,4-二甲氧基芐基)-2-(4-碘芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:42%.mp:207-208℃.1H NMR(400MHz,DMSO)δ:3.702(s,3H,OCH3),3.743(s,3H,OCH3),4.046(s,2H,ArCH2),4.271(s,2H,SCH2),6.736-6.761(m,1H,ArH),6.865-6.885(d,1H,ArH),6.955-7.006(m,3H,ArH),7.511-7.531(d,2H,ArH,J=8Hz),13.008(s,1H,NH);13CNMR(100MHz,DMSO)δ:33.300,56.019,93.593,112.416,113.598,121.352,130.120,131.659,137.481,138.139,148.136,149.063;MS(ESI):m/z,619.28[M-H]-.
實施例30
化合物6a5:6-(3,4-二甲氧基芐基)-2-(4-三氟甲基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:43%.mp:233-234℃.1H NMR(400MHz,DMSO)δ:3.683(s,3H,OCH3),3.704(s,3H,OCH3),4.055(s,2H,ArCH2),4.389(s,2H,SCH2),6.741-6.962(m,3H,ArH),7.376-7.396(d,2H,o-ArH,J=8Hz),7.492-7.512(d,2H,m-ArH,J=8Hz),13.057(s,1H,NH);13C NMR(100MHz,DMSO);δ:33.135,46.202,55.834,112.270,113.540,121.319,125.473,125.510,130.215,143.361,148.112,149.044;MS(ESI):m/z,561.38[M-H]-.
實施例31
化合物6a6:6-(3,4-二甲氧基芐基)-2-(3,5-二甲氧基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:43%.mp:163-164℃.1H NMR(400MHz,DMSO)δ:3.686-3.718(m,12H,OCH3),4.032-4.057(d,2H,ArCH2),4.316-4.474(s,2H,SCH2),6.396(s,1H,ArH),6.499-6.534(m,2H,ArH),6.826-6.993(d,3H,ArH),13.021(s,1H,NH);13C NMR(100MHz,DMSO)δ:34.371,55.587,55.966,82.252,99.552,107.379,112.379,113.429,121.231,129.931,139.800,148.148,149.035,159.441,160.920,161.073;MS(ESI):m/z,553.61[M-H]-.
實施例32
化合物6a7:6-(3,4-二甲氧基芐基)-2-(2-(4-甲基苯氧基)乙硫基)-5碘代嘧啶-4(3H)-酮
Yield:57%.mp:187-188℃.1H NMR(400MHz,DMSO)δ:2.215(s,3H,PhCH3),3.414-3.446(t,2H,SCH2),3.663(s,3H,OCH3),3.692(s,3H,OCH3),3.993(t,4H,OCH2;ArCH2),6.745-6.786(m,4H,ArH),7.066-7.086(d,1H,ArH),7.046-7.066(d,2H,m-ArH,J=8Hz),13.054(s,1H,NH);13C NMR(100MHz,DMSO)δ:20.026,29.150,55.350,55.542,111.692,112.833,114.185,120.764,129.451,129.808,147.570,148.451,155.877;MS(ESI):m/z,537.61[M-H]-.
實施例33
化合物6a8:6-(3,4-二甲氧基芐基)-2-(2-(4-溴苯氧基)乙硫基)-5-碘代嘧啶-4(3H)-酮
Yield:66%.mp:210-212℃.1H NMR(400MHz,DMSO)δ:3.457-3.489(t,2H,SCH2),3.647(s,3H,OCH3),3.697(s,3H,OCH3),3.996(s,2H,ArCH2),4.176-4.208(t,2H,OCH2),6.764(s,2H,ArH),6.929(s,1H,ArH),7.044-7.063(d,2H,o-ArH,J=7.6Hz),8.147-8.167(d,2H,m-ArH,J=8Hz),13.050(s,1H,NH);13C NMR(100MHz,DMSO)δ:29.230,46.182,55.834,67.073,112.165,113.355,115.390,121.181,126.280,130.105,141.452,148.049,148.975,163.746;MS(ESI):m/z,603.41[M-H]-.
實施例34
化合物6a9:6-(3,4-二甲氧基芐基)-2-(環(huán)庚基硫基)-5-碘代嘧啶-4(3H)-酮
Yield:32%.mp:223-224℃.1H NMR(400MHz,CDCl3)δ:1.274-1.855(m,12H,SCHCH12),3.700(m,1H,SCH),3.841(s,3H,OCH3),3.873(s,3H,OCH3),4.326(s,2H,SCH2),6.764-7.256(m,3H,ArH),11.752(s,1H,NH);13C NMR(100MHz,CDC13)δ:25.774,28.099,34.598,46.808,51.629,55.992,56.132,89.652,113.311,118.737,123.176,133.625,148.325,149.223,160.633,161.785,167.893;HRMS(ESI):m/z,calcd.for C20H24N2O3SI[M-H]-:499.0552,found499.0564.
實施例35
化合物6a10:6-(3,4-二甲氧基芐基)-2-(環(huán)己-2-烯-1-基硫基)-5-碘代嘧啶-4(3H)-酮
Yield:38%.mp:194-195℃.1H NMR(400MHz,CDCl3)δ:1.671-2.067(m,6H,CH2),3.875(s,6H,OCH3),4.062-4.117(m,2H,ArCH2),4.522(s,1H,CH),5.712-5.902(m,2H,CH),6.801-6.951(m,3H,ArH),11.965(s,1H,NH);13C NMR(100MHz,CDCl3)δ:19.597,24.794,28.989,42.397,46.662,55.936,84.792,111.150,112.661,121.534,125.076,129.703,132.379,147.996,148.799,160.241,162.075,168.874;MS(ESI):m/z,483.13[M-H]-.
實施例36
化合物6a11:6-(3,4-二甲氧基芐基)-2-(2-硝基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:34%.mp:194-195℃.1H NMR(400MHz,DMSO)δ:3.716(s,3H,OCH3),3.726(s,3H, OCH3),4.073(s,2H,ArCH2),4.609(s,2H,SCH2),6.813-6.988(m,3H,ArH),7.222-7.240(d,1H,ArH),7.435-7.527(m,2H,ArH),8.023-8.043(d,1H,ArH),13.039(s,1H,NH);13C NMR(100MHz,DMSO)δ:30.654,45.709,55.415,55.512,111.926,113.049,120.962,124.944,129.020,129.765,132.123,133.125,147.661,147.740,148.638;MS(ESI):m/z,538.17[M-H]-.
實施例37
化合物6a12:6-(3,4-二甲氧基芐基)-2-(3-氯芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:67%.mp:175-176℃.1H NMR(400MHz,CDCl3)δ:3.841(s,3H,OCH3),3.869(s,3H,OCH3),4.148(s,2H,ArCH2),4.318(s,2H,SCH2),6.797-6.927(m,3H,ArH),7.079-7283(m,4H,ArH),12.563(s,1H,NH);13C NMR(100MHz,CDCl3)δ:34.172,46.681,55.899,55.963,85.585,111.280,112.537,121.415,127.138,127.853,129.068,129.807,134.302,138.540,148.063,148.887,159.415,162.374,168.914;HRMS(ESI):m/z,calcd.for C20H17N2O3SClI[M-H]-:526.9693,found526.9697.
實施例38
化合物6a13:6-(3,4-二甲氧基芐基)-2-(3-甲氧基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:53%.mp:169-170℃.1H NMR(400MHz,CDCl3)δ:3.777(s,3H,OCH3),3.836(s,3H,OCH3),3.869(s,3H,OCH3),4.148(s,2H,SCH2),4.371(s,2H,ArCH2),6.789-6.956(m,6H,ArH),7.169(t,1H,ArH),12.347(s,1H,NH);13C NMR(100MHz,CDCl3)δ:35.022,46.656,55.222,55.833,55.894,85.309,111.229,112.522,113.143,114.682,121.345,121.430,129.650,137.622,148.039,148.867,159.753,159.952,162.283,168.894;MS(ESI):m/z,523.43[M-H]-.
實施例39
化合物6b1:6-(苯并[d]三氮唑-1-基)甲基-2-(4-硝基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:49%.mp:238-239℃.1H NMR(400MHz,DMSO)δ:3.763(s,2H,ArCH2),6.014(s,2H,SCH2),6.927-6.947(d,2H,o-ArH,J=8Hz),7.302-7.339(t,1H,ArH),7.471-7.509(t,1H,ArH),7.791-7.182(d,1H,ArH),7.872-7.897(d,2H,ArH),7.954-7.975(d,1H,ArH),13.276(s,1H,ArH); 13C NMR(100MHz,DMSO)δ:32.395,55.430,111.365,119.506,123.634,124.316,127.915,129.816,134.399,145.498,145.605,146.817;MS(ESI):m/z,519.24[M-H]-.
實施例40
化合物6b2:6-(苯并[d]三氮唑-1-基)甲基-2-(4-氰基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:33%.mp:186-187℃.1H NMR(400MHz,DMSO)δ:3.686(s,2H,ArCH2),6.008(s,2H,SCH2),6.858-6.878(d,2H,o-ArH,J=8Hz),7.322-7.360(t,1H,ArH),7.496-7.515(m,3H,ArH),7.794-7.815(d,1H,ArH),7.976-8.-7.997(d,1H,ArH),13.247(s,1H,NH),13C NMR(100MHz,DMSO)δ:32.697,55.405,110.269,111.376,119.099,119.534,124.341,127.929,129.614,132.481,134.341,143.446,145.501;MS(ESI):m/z,499.14[M-H]-.
實施例41
化合物6b3:6-(苯并[d]三氮唑-1-基)甲基-2-(2-(4-硝基苯氧基)乙硫基)-5-碘代嘧啶-4(3H)-酮
Yield:38%.mp:236-237℃.1H NMR(400MHz,DMSO)δ:2.670(t,2H,ArCH2),3.617-3.645(t,2H,OCH2),5.959(s,2H,SCH2),6.870-6.892(d,2H,o-ArH,J=8.8Hz),7.383(t,1H,ArH),7.551(t,1H,ArH),7.842-7.863(d,1H,ArH),8.029-8.050(d,1H,ArH),8.192-8.214(d,2H,m-ArH,J=8.8Hz),13.219(s,1H,NH);13C NMR(100MHz,DMSO)δ:29.097,55.303,111.526,115.306,119.565,124.332,126.298,127.890,134.573,141.041,145.443,163.628;HRMS(ESI):m/z,calcd.for C19H14N6O4SI[M-H]-:548.9842,found548.9845.
實施例42
化合物6b4:6-(苯并[d]三氮唑-1-基)甲基-2-(4-碘芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:37%.mp:205-206℃.1H NMR(400MHz,DMSO)δ:3.523(s,2H,ArCH2),6.020(s,2H,SCH2),6.468-6.488(d,2H,o-ArH,J=8Hz),7.398-7.547(m,4H,ArH),7.282-7.849(d,1H,ArH),8.011-8.032(d,1H,ArH),13.210(s,1H,NH);13C NMR(100MHz,DMSO)δ:32.171,54.939,93.157,110.999,119.042,123.877,127.430,130.576,133.996,136.879,145.038,160.905;MS(ESI):m/z,600.27[M-H]-.
實施例43
化合物6b5:6-(苯并[d]三氮唑-1-基)甲基-2-(4-三氟芐基硫基)-5-碘代嘧啶-4(3H)-酮
Yield:42%.mp:231-233℃.1H NMR(400MHz,DMSO)δ:3.689(s,2H,ArCH2),6.031(s,2H,SCH2),6.872-6.892(d,2H,o-ArH,J=8Hz),7.383-7.524(m,4H,ArH),7.824-7.845(d,1H,ArH),7.981-8.002(d,1H,ArH),13.289(s,1H,NH);13C NMR(100MHz,DMSO)δ:32.001,53.935,110.941,119.009,123.843,124.903,124.940,127.414,128.970,133.963,142.011,145.027;MS(ESI):m/z,542.20[M-H]-.
實施例44
化合物6b6:6-(苯并[d]三氮唑-1-基)甲基-2-(3,5-二甲氧基芐硫基)-5-碘代嘧啶-4(3H)-酮
Yield:48%.mp:243-244℃.1H NMR(400MHz,DMSO)δ:3.394(s,2H,ArCH2),3.684(s,6H,OCH3),5.999(s,2H,SCH2),6.090(s,2H,ArH),6.323(s,1H,ArH),7.325-7.363(t,1H,ArH),7.488-7.524(t,1H,ArH),7.810-7.831(d,1H,ArH),7.990-8.011(d,1H,ArH),13.113(s,1H,NH); 13C NMR(100MHz,DMSO)δ:34.073,51.586,55.622,99.672,107.223,111.360,119.667,124.494,127.954,133.955,145.626,160.861;HRMS(ESI):m/z,calcd.for C20H17N5O3SI[M-H]-:534.0097.found534.0099.
實施例45
化合物6b7:6-(苯并[d]三氮唑-1-基)甲基-2-(2-(4-甲基苯氧基)乙硫基)-5-碘代嘧啶-4(3H)-酮
Yield:40%.mp:199-200℃.1H NMR(400MHz,DMSO)δ:2.226(s,3H,PhCH3),2.605(t,2H,SCH2),3.121(t,2H,OCH2),5.984(s,2H,ArCH2),6.518-6.537(d,2H,o-ArH,J=7.6Hz),7.050-7.069(d,2H,m-ArH,J=7.6Hz),7.403-7.439(t,H,ArH),7.545-7.582(t,1H,ArH),7.857-7.877(d,1H,ArH),8.069-8.089(d,1H,ArH),13.091(s,1H,NH);13C NMR(100MHz,DMSO)δ:20.519,29.928,55.214,111.533,114.531,119.569,124.353,127.916,130.218,134.660,145.507,156.232;MS(ESI):m/z,518.30[M-H]-.
實施例46
化合物6b8:6-(苯并[d]三氮唑-1-基)甲基-2-(2-(4-溴苯氧基)乙硫基)-5-碘代嘧啶-4(3H)-酮
Yield:33%.mp:308℃.1H NMR(400MHz,DMSO)δ:2.619(t,2H,ArCH2),3.151(t,2H,OCH2),5.989(s,2H,SCH2),6.602-6.623(d,2H,o-ArH,J=8.4Hz),7.395-7.450(m,3H,ArH),7.545-7.583(t,1H,ArH),7.851-7.872(d,1H,ArH),8.059-8.080(s,1H,ArH),13.201(s,1H,NH); 13C NMR(100MHz,DMSO)δ:29.598,55.192,111.493,112.671,116.999,119.591,124.369,127945,132.553,134.628,145.487,157.623;MS(ESI):m/z,584.17[M-H]-.
實施例47
體外抗HBV活性測定實驗
一、實驗材料
1.1HepAD38細(xì)胞
HepAD38細(xì)胞系是人肝細(xì)胞腫瘤細(xì)胞系,其HBV DNA產(chǎn)量比Hep2.2.15細(xì)胞高11倍,所需培養(yǎng)時間只有Hep2.2.15細(xì)胞的一半,適用于抗HBV藥物篩選。
1.2試劑
DMEM培養(yǎng)液,胎牛血清,胰蛋白酶,二甲基亞砜(DMSO).
1.3主要儀器
二氧化碳培養(yǎng)箱,細(xì)胞培養(yǎng)瓶,24孔細(xì)胞培養(yǎng)板,倒置顯微鏡,低溫高速離心,電子分析天平,生物安全柜,酶聯(lián)儀
二、實驗方法
細(xì)胞上清中HBV DNA含量實驗
化合物用含DMSO的培養(yǎng)液配制成各濃度藥液,分別加入24孔培養(yǎng)板中,每孔0.5mL,每濃度3孔。24小時后換入含藥培養(yǎng)基,2天后換入相同的含藥培養(yǎng)基,24h后收集細(xì)胞上清。收集到的細(xì)胞上清在100℃下煮沸10min,12000rpm離心10min。最后用熒光定量PCR檢測細(xì)胞培養(yǎng)上清中HBV DNA的表達(dá)量,通過GraphPad Prism分析得抑制率以及EC50。
細(xì)胞毒性實驗
將細(xì)胞鋪至96孔板,24h后藥物樣品母液,用HepAD38細(xì)胞培養(yǎng)基配置成200μM、100μM、50μM共3個濃度,加入到96孔板細(xì)胞培養(yǎng)板,每濃度6孔,用含有0.4%DMSO的培養(yǎng)基作為對照組。每2天換同濃度藥液并設(shè)無藥細(xì)胞對照組,共培養(yǎng)7天。用MTT法 檢測細(xì)胞存活率。
三、實驗結(jié)果
a10μM濃度下的抑制率;b數(shù)據(jù)是至少兩次實驗的平均值
表一化合物對HepAD38細(xì)胞培養(yǎng)上清DNA的抑制率
a半最大效應(yīng)濃度;b引起50%細(xì)胞死亡的濃度;c治療指數(shù),CC50/EC50.
表二化合物EC50與CC50值
四、結(jié)果分析
分析實驗結(jié)果,可以看出2,5,6位取代嘧啶酮衍生物具有良好的抗乙肝病毒活性,且其毒性較低,具有較高的治療指數(shù),是一類新的非核苷類乙肝病毒抑制劑。