New synthesis of oxcarbazepine via remote metalation of protected N-o-tolyl-anthranilamide derivatives
摘要:
Benzyl and allyl protected N-o-tolyl-anthranilamides were efficiently prepared by Buchwald-Hartwig C-N cross coupling reactions, followed by protection of the amino group. Under directed remote metalation conditions, protected dibenzoazepinones were obtained in good yields. Deprotection of the amine and conversion to an urea furnished a new and efficient synthesis of the antiepileptic drug Trileptal((R)). (C) 2001 Elsevier Science Ltd. All rights reserved.
New synthesis of oxcarbazepine via remote metalation of protected N-o-tolyl-anthranilamide derivatives
摘要:
Benzyl and allyl protected N-o-tolyl-anthranilamides were efficiently prepared by Buchwald-Hartwig C-N cross coupling reactions, followed by protection of the amino group. Under directed remote metalation conditions, protected dibenzoazepinones were obtained in good yields. Deprotection of the amine and conversion to an urea furnished a new and efficient synthesis of the antiepileptic drug Trileptal((R)). (C) 2001 Elsevier Science Ltd. All rights reserved.
of alkenyl chlorides has been developed, and a variety of deuterated alkenes were synthesized with precise control of the deuterium incorporation. This catalytic process tolerates heterocyclic moieties and frameworks derived from bioactive agents. In addition to the double incorporation of deuterium, the gram-scale synthesis of a deuterated iminostilbene unit including a core substructure of carbamazepine