Design, synthesis and analgesic properties of novel conformationally-restricted N-acylhydrazones (NAH)
摘要:
A set of six azaheterocycles were designed as conformationnaly-constrained N-acylhydrazones and tested as analgesics. (C) 2009 Elsevier Ltd. All rights reserved.
Rh(III) Catalyzed Redox-Neutral C–H Activation/[5 + 2] Annulation of Aroyl Hydrazides and Sulfoxonium Ylides: Synthesis of Benzodiazepinones
作者:Pothapragada S. K. Prabhakar Ganesh、Perumal Muthuraja、Purushothaman Gopinath
DOI:10.1021/acs.orglett.3c03495
日期:2023.11.24
We herein report the Rh(III) catalyzed redox-neutral C–Hactivation/[5 + 2] annulation of aroyl hydrazides with sulfoxonium ylides as safe carbene precursors. The reaction shows excellent functional group tolerance, broad substrate scope, and scalability. We demonstrated the synthetic utility of the protocol via the synthesis of various diazepam drug analogues, late-stage functionalization of probenecid