Structure–activity relationships for dipeptide prodrugs of acyclovir: Implications for prodrug design
作者:Cledir R. Santos、Rita Capela、Cláudia S.G.P. Pereira、Emília Valente、Luís Gouveia、Christophe Pannecouque、Erik De Clercq、Rui Moreira、Paula Gomes
DOI:10.1016/j.ejmech.2008.08.009
日期:2009.6
A series of water-soluble dipeptide ester prodrugs of the antiviral acyclovir (ACV) were evaluated for their chemical stability, cytotoxicity, and antiviral activity against several strains of Herpes Simplex-1 and -2, vaccinia, vesicular stomatitis, cytomegalovirus and varicella zoster viruses. ACV dipeptide esters were very active against herpetic viruses, independently of the rate at which they liberate
评估了一系列抗病毒阿昔洛韦(ACV)的水溶性二肽酯前药的化学稳定性,细胞毒性以及对几种单纯疱疹-1型和-2型,牛痘,水疱性口腔炎,巨细胞病毒和水痘带状疱疹病毒的抗病毒活性。ACV二肽酯对疱疹病毒非常有活性,而与它们释放母体药物的速率无关。它们的最低细胞毒性浓度超过100μM,且产生的MCC / EC 50值低于ACV。当比较pH 7.4缓冲液中Phe-Gly酯和酰胺(ACV,齐多夫定,对乙酰氨基酚,卡托普利和伯氨喹)的反应性时,发现药物释放速率随药物离去基团能力的增加而增加。母体药物在人血浆中从Phe-Gly释放的速度明显比在pH 7.4缓冲液中释放快,因此表明基于二肽的前药方法可以成功地应用于含有硫醇,苯酚和胺官能团的生物活性剂。