Dipyrido[3,2-B:2 ',3'-E][1,4]Diaqzepines and their use in the treatment
申请人:Boehringer Ingelheim Pharmaceuticals, Inc.
公开号:US05550117A1
公开(公告)日:1996-08-27
Disclosed are novel dipyrido[3,2-b:2',3'-e][1,4]diazepines and their use in the treatment of HIV-1 infection. An exemplary species is 6-chloro-11-cyclopropyl-4-methyl-11H-dipyrido[3,2-b:2',3'-e][1,4]diazepine , which has the following chemical structure: ##STR1##
The tricyclic ringsystem of the antiviral drug nevirapine has been employed to test the workability of the hydrated imidazoline ringexpansion (HIRE) reaction which was previously exemplified for [1.4]oxazepine and [1.4]thiazepine counterparts. The imidazoline nucleus was grafted onto the lactam moiety of nevirapine in two high-yielding steps. Subsequent N-alkylation and the HIRE reaction proceeded