名称:
Unified route to asymmetrically substituted butenolide, maleic anhydride, and maleimide constituents of Antrodia camphorata
摘要:
The first synthesis of antrocinnamomin D and a new synthesis of antrodins A and B have been achieved in 6-8 steps and high overall efficiency (51, 46, and 43%, respectively) from commercially available methyl 4-hydroxyphenylacetate. Key steps include Furstner-Kochi iron-catalyzed sp(2)-sp(3) cross-coupling and 2-silyloxyfuran oxyfunctionalization. (c) 2012 Elsevier Ltd. All rights reserved.