Scalable, Catalytic Asymmetric Synthesis of Syn, Anti Stereotriad Building Blocks for Polypropionate Antibiotics
摘要:
Asymmetric catalysis and chirality transfer by the 2,3-Wittig rearrangement were combined to provide a syn, anti stereotriad-containing olefinic alcohol in five steps from inexpensive starting materials. Development of this compound, a versatile intermediate for polypropionate synthesis, gave known building blocks for discodermolide.
A Practical Improvement, Enhancing the Large-Scale Synthesis of (+)-Discodermolide: A Third-Generation Approach
作者:Amos B. Smith、B. Scott Freeze、Ignacio Brouard、Tomoyasu Hirose
DOI:10.1021/ol035697i
日期:2003.11.1
A significant improvement to the Penn one-gram synthesis of (+)-discodermolide (1) has been achieved. Specifically, reduction of the steric bulk of the C(11) hydroxyl protecting group permits formation of the requisite AB Wittig salt at the expense of the undesired intramolecular cyclization upon treatment with PPh3 at ambient pressure.
[EN] SYNTHETIC TECHNIQUES AND INTERMEDIATES FOR POLYHYDROXY DIENYL LACTONES AND MIMICS THEREOF<br/>[FR] TECHNIQUES DE SYNTHESE ET INTERMEDIAIRES POUR LACTONES DE DIENYLE POLYHYDROXYLE ET LEURS ANALOGUES
申请人:UNIV PENNSYLVANIA
公开号:WO2004101508A3
公开(公告)日:2005-03-03
Synthesis Of Discodermolide And Variants Thereof
申请人:Smith B. Amos
公开号:US20070276144A1
公开(公告)日:2007-11-29
Processes for synthesizing a compound of Formula (I) are provided by reacting a compound of Formula (i) with a compound of Formula (xx).