158985-00-3Relevant articles and documents
Regioselective Functionalization of 7-Azaindole by Controlled Annular Isomerism: The Directed Metalation-Group Dance
Dalziel, Michael E.,Patel, Jignesh J.,Kaye, Meagan K.,Cosman, Jennifer L.,Kitching, Matthew O.,Snieckus, Victor
, p. 7313 - 7317 (2019)
The regioselective functionalization of 7-azaindole by controlled annular isomerism employing a directed metalation-group migration is reported. The N7 carbamoyl azaindoles undergo regioselective metalation and quenching with an electrophile to furnish C6-substituted derivatives which, in the presence of a catalytic amount of ClCONR2 promotes a carbamoyl group shift or dance from N7 to N1. A second directed metalation/electrophile quench sequence leads to 2,6-substituted azaindoles. Optimization of the metalation conditions for C2 and C6, separately and iteratively, is presented. Using the directed metalation group dance strategy, a late-stage deuteration of an antipsychotic drug is described. Overall, the controlled migration of the carbamoyl directing group allows multiple functionalization events of the bioactive azaindole scaffold.
Pyrrolo-pyridine derivatives
-
, (2008/06/13)
A class of pyrrolo[2,3-b]pyridine derivatives, substituted at the 3-position by a substituted piperazinylmethyl moiety, are antagonists of dopamine receptor subtypes within the brain, having a selective affinity for the dopamine D 4 receptor subtype over other dopamine receptor subtypes, and are accordingly of benefit in the treatment and/or prevention of psychotic disorders such as schizophrenia while manifesting fewer side-effects than those associated with classical neuroleptic drugs.