Total Syntheses of Cinchona Alkaloids via Photoredox-Catalyzed Deoxygenative Arylation
作者:Lei Li、Hua-Fei Yang、Qian-Hui Ding、Kun Wei、Yu-Rong Yang
DOI:10.1021/acs.orglett.3c01659
日期:2023.6.23
coupling by MacMillan. Inspired by this method, we report herein its first utilization in natural product total synthesis through realizing the coupling of 4-bromo-quinoline or 4-bromo-6-methoxyquinoline with quincorine or quincoridine, respectively. The alcohols were denovo synthesized in racemic form by a key step of the intramolecular Diels–Alder reaction or in an enantioselective manner by Ir/amine