Betulinic Acid Derivatives: A New Class of Specific Inhibitors of Human Immunodeficiency Virus Type 1 Entry
作者:Françoise Soler、Christèle Poujade、Michel Evers、Jean-Christophe Carry、Yvette Hénin、Anne Bousseau、Thierry Huet、Rudi Pauwels、Erik De Clercq、Jean-François Mayaux、Jean-Bernard Le Pecq、Norbert Dereu
DOI:10.1021/jm950669u
日期:1996.1.1
A novel series of omega-aminoalkanoic acid derivatives of betulinic acid were synthesized and evaluated for their activity against human immunodeficiency virus (HIV). The anti-HIV-1 activity of several members of this new series was found to be in the nanomolar range in CEM 4 and MT-4 cell cultures. The optimization of the omega-aminoalkanoic acid side chain is described. The presence of an amide function within the side chain was found important for optimal activity. RPR 103611 (14g), a statine derivative, was found to be inactive against HIV-1 protease, reverse transcriptase, and integrase as well as on gp120/CD4 binding. ''Time of addition'' experiments suggested interaction with an early step of HIV-1 replication. As syncytium formation, but not virus-cell binding, seems to be affected, betulinic acid derivatives are assumed to interact with the postbinding virus-cell fusion process.