Catalytic asymmetric synthesis of (S,4E,15Z)-docosa-4,15-dien-1-yn-3-ol, an antitumor marine natural product
摘要:
An efficient enantioselective total synthesis of an antitumor marine natural product (S,4E,15Z)-docosa-4,15-dien-1-yn-3-ol 1 with 96% ee and 15% overall yield has been achieved; this is the first preparation of 1 via asymmetric catalytic strategy. The key steps involve the asymmetric addition of trimethylsilylacetylene to a diolefinc aldehyde using a (R,R)-ProPhenol ligand and a zipper reaction of an alkyne. (C) 2015 Elsevier Ltd. All rights reserved.