作者:Keiji Tamura、Makoto Furutachi、Naoya Kumagai、Masakatsu Shibasaki
DOI:10.1021/jo4019528
日期:2013.11.15
A new seven-step sequence to access voriconazole, a clinically used antifungal agent, was developed. The initial catalytic asymmetric cyanosilylation is the key to constructing the consecutive tetra- and trisubstituted stereogenic centers. The fluoropyrimidine unit frequently triggered unexpected side reactions, but careful amendment of the reaction sequence allowed for the concise enantioselective synthesis.