Synthesis of substituted 6H-benzo[c]chromenes: a palladium promoted ring closure of diazonium tetrafluoroborates
摘要:
A highly efficient palladium-catalysed phenyl diazonium tetrafluoroborate participation of C-H activation ring closure protocol has been developed. A series of 6H-benzo[c]chromenes have been synthesized by intramolecular cyclization of ortho diazonium salts tetrafluoroborate of benzyloxyphenyl (Method A), or phenoxymethyl phenyl (Method B). The transformation allows the synthesis of 6H-benzo[c]chromenes with a wide variety of functional groups and substitution patterns from simple and easily accessible precursors. Crown Copyright (c) 2012 Published by Elsevier Ltd. All rights reserved.
Synthesis of substituted 6H-benzo[c]chromenes: a palladium promoted ring closure of diazonium tetrafluoroborates
作者:Jing Zhou、Liang-Zhu Huang、You-Qiang Li、Zhen-Ting Du
DOI:10.1016/j.tetlet.2012.10.038
日期:2012.12
A highly efficient palladium-catalysed phenyl diazonium tetrafluoroborate participation of C-H activation ring closure protocol has been developed. A series of 6H-benzo[c]chromenes have been synthesized by intramolecular cyclization of ortho diazonium salts tetrafluoroborate of benzyloxyphenyl (Method A), or phenoxymethyl phenyl (Method B). The transformation allows the synthesis of 6H-benzo[c]chromenes with a wide variety of functional groups and substitution patterns from simple and easily accessible precursors. Crown Copyright (c) 2012 Published by Elsevier Ltd. All rights reserved.
Rational design of novel diaryl ether-linked benzimidazole derivatives as potent and selective BACE1 inhibitors
作者:Tran Quang De、Cuong Quoc Nguyen、Quang Le Dang、Nhu Y. Nguyen Thi、Nguyen Trong Tuan、Dong Hoon Suh、Jeonghyun Chu、Sukumar Bepary、Ge Hyeong Lee、Nam Sook Kang、Heeyeong Cho、Woo Kyu Park、Hee-Jong Lim
DOI:10.1016/j.bbrc.2024.149538
日期:2024.2
of BACE1 enzyme, the development of nonpeptide inhibitors with optimal pharmacological properties is still highly demanding. In this work, we have discovered 2-aminobenzimidazole-containg ether scaffolds having potent and selective inhibitory potentials againstBACE1 enzyme. We have synthesized novel 29 compounds and optimization of aryl linker region resulted in highly potent BACE1inhibitory activities