An elegant approach to quaternary oxindole formation has been developed through a room temperature decarboxylation/radical CâH functionalization by visible-light photoredox catalysis.
mild visible‐light‐induced Pd‐catalyzed intramolecular C−H arylation of amides is reported. The method operates by cleavage of a C(sp2)−O bond, leading to hybrid aryl Pd‐radical intermediates. The following 1,5‐hydrogen atom translocation, intramolecular cyclization, and rearomatization steps lead to valuable oxindole and isoindoline‐1‐one motifs. Notably, this method provides access to products with
Pyrrolobenzimidazolones and their use as anti-proliferative agents
申请人:McConnel Darryl
公开号:US20050261350A1
公开(公告)日:2005-11-24
The invention relates to pyrrolobenzimidazolone compounds of formula (I),
wherein A, T and R
1
to R
3
are defined as in claim
1,
which are suitable for the treatment of diseases characterized by excessive or abnormal cell proliferation and the use thereof for preparing a pharmaceutical composition.