Double Cyclization of Bis(α-hetarylmethyl)amino Esters to Optically Active Bridged N-Heterocycles of HIV-Inhibiting Activity
作者:Heike Faltz、Christoph Bender、Birgitta M. Wöhrl、Karin Vogel-Bachmayr、Ullrich Hübscher、Kristijan Ramadan、Jürgen Liebscher
DOI:10.1002/ejoc.200400136
日期:2004.8
were synthesized by several routes starting from natural α-amino esters 2 and o-haloaryl- or o-bromohetarylmethyl bromides 1. N-Alkylation of the starting aminoesters to 5 and 3 was followed by halogen/lithium exchange and doublecyclization. The cyclization products 6 exhibit interesting inhibition of RNase H and DNA-polymerase activity of reverse transcriptase (RT) of HIV-1 at concentrations where