Towards the synthesis of Palmerolide A: asymmetric synthesis of C1–C14 fragment
摘要:
The synthesis of a C1-C14 fragment of a marine cytotoxic natural product Palmerolide A is described. The key steps involved in this synthesis are deoxygenative rearrangement of an alkynol followed by an asymmetric dihydroxylation of a diene ester and CBS-reduction. (c) 2007 Elsevier Ltd. All rights reserved.
De Novo Formal Synthesis of (−)-Apicularen A via an Iterative Asymmetric Hydration Sequence
作者:Miaosheng Li、George A. O'Doherty
DOI:10.1021/ol062595u
日期:2006.12.1
synthesis of the macrolide natural product (-)-apicularen A has been achieved in 18 steps from achiral starting materials. Both the absolute and relative stereochemistries of apicularen A were introduced by a Sharpless asymmetric dihydroxylation, a pi-allyl-palladium catalyzed reduction, a stereoselective reduction, and a base-promoted transannulation to install the C-9 stereocenter.
The synthesis of a C1-C14 fragment of a marine cytotoxic natural product Palmerolide A is described. The key steps involved in this synthesis are deoxygenative rearrangement of an alkynol followed by an asymmetric dihydroxylation of a diene ester and CBS-reduction. (c) 2007 Elsevier Ltd. All rights reserved.