A series of novel bis(trifluoroethyl)phosphonomethyl ether derivatives of acyclovir was synthesized and their in vitro anti-HBV activity was evaluated in HepG2 2.2.15 cells. In contrast to acyclovir, most of the des...A series of novel bis(trifluoroethyl)phosphonomethyl ether derivatives of acyclovir was synthesized and their in vitro anti-HBV activity was evaluated in HepG2 2.2.15 cells. In contrast to acyclovir, most of the described phosphonates emerged as potent inhibitors of HBV replication. Especially, the most active compound 11 with IC50 value of 2.92 μmol/L was 33 times more potent than acyclovir with ICso value of 100 μmol/L.展开更多
Four novel 5-substituted pyridine-2(1H)-one derivatives were designed and synthesized by using addition-elimination reactions.The structures of these novelly synthesized compounds were verified by ~1H NMR,ESI-MS and s...Four novel 5-substituted pyridine-2(1H)-one derivatives were designed and synthesized by using addition-elimination reactions.The structures of these novelly synthesized compounds were verified by ~1H NMR,ESI-MS and single crystal X-ray diffraction.Furthermore,all four compounds(most notably compound 7a) were found to be highly efficient against hepatitis B virus (HBV) in cultured HepG2 2.2.15 cell,making them promising drug candidates for potential bioactive molecule against hepatitis B.展开更多
A series of 1H-benzimidazol-5-ol derivatives were synthesized and evaluated for their anti-hepatitis B virus(HBV) activity and cytotoxicity in HepG2.2.15 cells.Half of the tested compounds were found to be potent agai...A series of 1H-benzimidazol-5-ol derivatives were synthesized and evaluated for their anti-hepatitis B virus(HBV) activity and cytotoxicity in HepG2.2.15 cells.Half of the tested compounds were found to be potent against HBsAg secretion with IC50 values less than 100μmol/L.Compounds 14c,14d,and 14e showed significant inhibitory activity to the viral antigen HBeAg.展开更多
A series of novel L-amino acid esters prodrugs of acyclic nucleoside phosphonates was synthesized and their anti-HBV activity was evaluated in HepG2 2.2.15 cells. Compound 1d exhibited more potent anti-HBV activity an...A series of novel L-amino acid esters prodrugs of acyclic nucleoside phosphonates was synthesized and their anti-HBV activity was evaluated in HepG2 2.2.15 cells. Compound 1d exhibited more potent anti-HBV activity and lower cytotoxicity than those of adefovir dipivoxil with EC50 and CC50 values of 0.207 μmol/L and 2530 μmol/L, respectively.展开更多
以4-取代-9-(2′-脱氧-2′-β-氟-β-D-呋喃糖基)吡咯[2,3-d]嘧啶类化合物为原料,与三氯氧磷一锅法合成出具有新型结构的吡咯[2,3-d]嘧啶核苷单磷酸酯类化合物,其化学结构经核磁共振磷谱(31P NMR)、核磁共振氢谱(1 H NMR)、高分辨质谱(H...以4-取代-9-(2′-脱氧-2′-β-氟-β-D-呋喃糖基)吡咯[2,3-d]嘧啶类化合物为原料,与三氯氧磷一锅法合成出具有新型结构的吡咯[2,3-d]嘧啶核苷单磷酸酯类化合物,其化学结构经核磁共振磷谱(31P NMR)、核磁共振氢谱(1 H NMR)、高分辨质谱(HRMS)分析确证;对合成的目标化合物进行了初步的体外抗乙肝病毒药理活性实验,结果显示设计合成的7个化合物对乙型肝炎病毒表面抗原(HBsAg)和乙型肝炎e抗原(HBeAg)都有一定的抑制作用,其中化合物3a,3d,3f对HBsAg和HBeAg的抑制率较高,3a的毒性较低.展开更多
目的了解人类免疫缺陷病毒(human immunodeficiency virus,HIV)合并乙型肝炎病毒(hepatitis B virus,HBV)感染者启动高效抗逆转录病毒治疗(highly active anti-retroviral treatment,HAART)后肾功能损害情况,并分析其影响因素。方法回...目的了解人类免疫缺陷病毒(human immunodeficiency virus,HIV)合并乙型肝炎病毒(hepatitis B virus,HBV)感染者启动高效抗逆转录病毒治疗(highly active anti-retroviral treatment,HAART)后肾功能损害情况,并分析其影响因素。方法回顾性分析2010-01~2015-06广西启动HAART的3 395例HIV合并HBV感染者,采用Logistic回归模型分析启动治疗第12个月肾功能损害发生的影响因素。结果研究对象在启动HAART后第12个月的肾功能损害发生率为14.76%。服用含克力芝的一线治疗方案(AOR=4.19,95%CI=2.76~6.38)及启动治疗时WHO分期为3/4期(AOR=1.86,95%CI=1.49~2.33)是治疗后第12个月发生肾功能损害的危险因素。与启动治疗时CD4计数<200个/μL者相比,启动治疗时CD4计数为200~349个/μL(AOR=0.66,95%CI=0.50~0.85)、350~499个/μL(AOR=0.54,95%CI=0.34~0.84)、≥500个/μL者(AOR=0.36,95%CI=0.18~0.74)治疗后第12个月肾功能损害风险较低。结论HIV合并HBV感染者应尽早启动HAART,选择含替诺福韦的一线治疗方案可以有效降低治疗第12个月肾功能损害风险。展开更多
文摘A series of novel bis(trifluoroethyl)phosphonomethyl ether derivatives of acyclovir was synthesized and their in vitro anti-HBV activity was evaluated in HepG2 2.2.15 cells. In contrast to acyclovir, most of the described phosphonates emerged as potent inhibitors of HBV replication. Especially, the most active compound 11 with IC50 value of 2.92 μmol/L was 33 times more potent than acyclovir with ICso value of 100 μmol/L.
文摘Four novel 5-substituted pyridine-2(1H)-one derivatives were designed and synthesized by using addition-elimination reactions.The structures of these novelly synthesized compounds were verified by ~1H NMR,ESI-MS and single crystal X-ray diffraction.Furthermore,all four compounds(most notably compound 7a) were found to be highly efficient against hepatitis B virus (HBV) in cultured HepG2 2.2.15 cell,making them promising drug candidates for potential bioactive molecule against hepatitis B.
文摘A series of 1H-benzimidazol-5-ol derivatives were synthesized and evaluated for their anti-hepatitis B virus(HBV) activity and cytotoxicity in HepG2.2.15 cells.Half of the tested compounds were found to be potent against HBsAg secretion with IC50 values less than 100μmol/L.Compounds 14c,14d,and 14e showed significant inhibitory activity to the viral antigen HBeAg.
文摘A series of novel L-amino acid esters prodrugs of acyclic nucleoside phosphonates was synthesized and their anti-HBV activity was evaluated in HepG2 2.2.15 cells. Compound 1d exhibited more potent anti-HBV activity and lower cytotoxicity than those of adefovir dipivoxil with EC50 and CC50 values of 0.207 μmol/L and 2530 μmol/L, respectively.
文摘以4-取代-9-(2′-脱氧-2′-β-氟-β-D-呋喃糖基)吡咯[2,3-d]嘧啶类化合物为原料,与三氯氧磷一锅法合成出具有新型结构的吡咯[2,3-d]嘧啶核苷单磷酸酯类化合物,其化学结构经核磁共振磷谱(31P NMR)、核磁共振氢谱(1 H NMR)、高分辨质谱(HRMS)分析确证;对合成的目标化合物进行了初步的体外抗乙肝病毒药理活性实验,结果显示设计合成的7个化合物对乙型肝炎病毒表面抗原(HBsAg)和乙型肝炎e抗原(HBeAg)都有一定的抑制作用,其中化合物3a,3d,3f对HBsAg和HBeAg的抑制率较高,3a的毒性较低.
文摘目的了解人类免疫缺陷病毒(human immunodeficiency virus,HIV)合并乙型肝炎病毒(hepatitis B virus,HBV)感染者启动高效抗逆转录病毒治疗(highly active anti-retroviral treatment,HAART)后肾功能损害情况,并分析其影响因素。方法回顾性分析2010-01~2015-06广西启动HAART的3 395例HIV合并HBV感染者,采用Logistic回归模型分析启动治疗第12个月肾功能损害发生的影响因素。结果研究对象在启动HAART后第12个月的肾功能损害发生率为14.76%。服用含克力芝的一线治疗方案(AOR=4.19,95%CI=2.76~6.38)及启动治疗时WHO分期为3/4期(AOR=1.86,95%CI=1.49~2.33)是治疗后第12个月发生肾功能损害的危险因素。与启动治疗时CD4计数<200个/μL者相比,启动治疗时CD4计数为200~349个/μL(AOR=0.66,95%CI=0.50~0.85)、350~499个/μL(AOR=0.54,95%CI=0.34~0.84)、≥500个/μL者(AOR=0.36,95%CI=0.18~0.74)治疗后第12个月肾功能损害风险较低。结论HIV合并HBV感染者应尽早启动HAART,选择含替诺福韦的一线治疗方案可以有效降低治疗第12个月肾功能损害风险。