A Highly Efficient Synthesis of a Naphthalenoid Histamine-3 Antagonist
作者:Yi-Yin Ku、Tim Grieme、Yu-Ming Pu、Ashok V. Bhatia
DOI:10.1002/adsc.200900162
日期:2009.8
chemical steps and a salt formation step in 36% overall yield from 6-bromo-2-naphthalenol 9. The key features are a regioselective Suzuki coupling protocol for selective vinylation of 12 with potassium vinyltrifluoroborate in high yield (92%) with excellent regioselectivity (90:2) and a base-catalyzed hydroamination reaction of 11 in an anti-Markovnikov fashion under mild reaction conditions. An optimized