Hybrids of [TSAO-T]−[Foscarnet]: The First Conjugate of Foscarnet with a Non-nucleoside Reverse Transcriptase Inhibitor through a Labile Covalent Ester Bond
摘要:
This paper describes the first example of combination of non-nucleoside reverse transcriptase inhibitors such as TSAO derivatives and foscarnet (PFA) in a single molecule through a labile covalent ester bond. The essential criteria in the design of these hybrids [TSAO-T]-[PFA] was to explore if the conjugation of foscarnet with the highly lipophilic TSAO derivative may facilitate the penetration of the conjugates through the cell membrane and if the hybrids escape extracellular hydrolysis and regenerate the parent inhibitors intracellulary. Several [TSAO-T]-[PFA] conjugates proved markedly inhibitory to HIV-1. Some of them also showed potent activity against PFA-resistant HIV-1 strains but fewer had detectable inhibitory activity against TSAO-resistant HIV-1 strains. These results indicated a pivotal role of the TSAO component of the hybrid but not the PFA component in the activity of the conjugates. Moreover, stability studies of the [TSAO-T]-[PFA] conjugates demonstrated that the compounds were stable in PBS whereas some of the conjugates regenerated the parent inhibitors in extracts from CEM cells.
Hybrids of [TSAO-T]−[Foscarnet]: The First Conjugate of Foscarnet with a Non-nucleoside Reverse Transcriptase Inhibitor through a Labile Covalent Ester Bond
摘要:
This paper describes the first example of combination of non-nucleoside reverse transcriptase inhibitors such as TSAO derivatives and foscarnet (PFA) in a single molecule through a labile covalent ester bond. The essential criteria in the design of these hybrids [TSAO-T]-[PFA] was to explore if the conjugation of foscarnet with the highly lipophilic TSAO derivative may facilitate the penetration of the conjugates through the cell membrane and if the hybrids escape extracellular hydrolysis and regenerate the parent inhibitors intracellulary. Several [TSAO-T]-[PFA] conjugates proved markedly inhibitory to HIV-1. Some of them also showed potent activity against PFA-resistant HIV-1 strains but fewer had detectable inhibitory activity against TSAO-resistant HIV-1 strains. These results indicated a pivotal role of the TSAO component of the hybrid but not the PFA component in the activity of the conjugates. Moreover, stability studies of the [TSAO-T]-[PFA] conjugates demonstrated that the compounds were stable in PBS whereas some of the conjugates regenerated the parent inhibitors in extracts from CEM cells.
Mitchell, Antony G.; Nicholls, Dave; Walker, Ian, Journal of the Chemical Society. Perkin transactions II, 1991, # 8, p. 1297 - 1304
作者:Mitchell, Antony G.、Nicholls, Dave、Walker, Ian、Irwin, William J.、Freeman, Sally
DOI:——
日期:——
Hybrids of [TSAO-T]−[Foscarnet]: The First Conjugate of Foscarnet with a Non-nucleoside Reverse Transcriptase Inhibitor through a Labile Covalent Ester Bond
作者:Sonsoles Velázquez、Esther Lobatón、Erik De Clercq、Dianna L. Koontz、John W. Mellors、Jan Balzarini、María-José Camarasa
DOI:10.1021/jm031045o
日期:2004.6.1
This paper describes the first example of combination of non-nucleoside reverse transcriptase inhibitors such as TSAO derivatives and foscarnet (PFA) in a single molecule through a labile covalent ester bond. The essential criteria in the design of these hybrids [TSAO-T]-[PFA] was to explore if the conjugation of foscarnet with the highly lipophilic TSAO derivative may facilitate the penetration of the conjugates through the cell membrane and if the hybrids escape extracellular hydrolysis and regenerate the parent inhibitors intracellulary. Several [TSAO-T]-[PFA] conjugates proved markedly inhibitory to HIV-1. Some of them also showed potent activity against PFA-resistant HIV-1 strains but fewer had detectable inhibitory activity against TSAO-resistant HIV-1 strains. These results indicated a pivotal role of the TSAO component of the hybrid but not the PFA component in the activity of the conjugates. Moreover, stability studies of the [TSAO-T]-[PFA] conjugates demonstrated that the compounds were stable in PBS whereas some of the conjugates regenerated the parent inhibitors in extracts from CEM cells.