Synthesis of discodermolide intermediates from engineered polyketides
摘要:
Key intermediates used in Smith's total synthesis of discodemolide were synthesized from an engineered polyketide made via precursor feeding to genetically modified polyketide producing bacteria. (c) 2005 Elsevier Ltd. All rights reserved.
The invention provides novel six and seven-carbon termini-differentiated polypropionate stereotetrads and stereopentads useful in syntheses of natural products. The invention also provides a novel alkylative sulfenylation-desulfonylation process that efficiently transforms enantiopure epoxyvinyl sulfones to syn and anti dienylsulfides in two operations.
Synthesis of Termini-Differentiated 6-Carbon Stereotetrads: An Alkylative Oxidation Strategy for Preparation of the C21−C26 Segment of Apoptolidin<sup>1</sup>
作者:Yuzhong Chen、Jerry B. Evarts、Eduardo Torres、Philip L. Fuchs
DOI:10.1021/ol026377m
日期:2002.10.1
an enantiospecific catalytic Jacobsen epoxidation of 1a and is five operations shorter. The second sequence features an oxygen-directed alkylativeoxidation reaction that re-establishes the dienyl sulfonefunctionality with concomitant 1,3-transposition of the sulfone moiety.
Synthesis of discodermolide intermediates from engineered polyketides
作者:Mark A. Burlingame、Esteban Mendoza、Gary W. Ashley、David C. Myles
DOI:10.1016/j.tetlet.2005.12.010
日期:2006.2
Key intermediates used in Smith's total synthesis of discodemolide were synthesized from an engineered polyketide made via precursor feeding to genetically modified polyketide producing bacteria. (c) 2005 Elsevier Ltd. All rights reserved.