An Acid-Catalyzed Epoxide Ring-Opening/Transesterification Cascade Cyclization to Diastereoselective Syntheses of (±)-β-Noscapine and (±)-β-Hydrastine

Autor: Xinjing Song, Jihui Li, Dongmei Zhao, Jiaxin Meng, Maosheng Cheng, Yang Zheng, Yongxiang Liu, Tianxiao Wu, Qiaohua Qin
Rok vydání: 2019
Předmět:
Zdroj: Organic letters. 21(17)
ISSN: 1523-7052
Popis: An acid-catalyzed stereoselective epoxide ring-opening/intramolecular transesterification cascade cyclization reaction and N-Boc deprotection was found to be a successful strategy to construct the phthalide tetrahydroisoquinoline skeleton in one pot. Based on this strategy, the unified and highly diastereoselective routes for the total syntheses of (±)-β-Noscapine and (±)-β-Hydrastine were exploited.
Databáze: OpenAIRE