An aldol approach to the synthesis of the anti-tubercular agent erogorgiaene
摘要:
A total synthesis of erogorgiaene is described in 16 steps. The synthesis relies upon a highly diastereoselective intramolecular Friedel-Crafts reaction of an oxetane derived via an asymmetric syn aldol coupling. (c) 2007 Published by Elsevier Ltd.
An aldol approach to the synthesis of the anti-tubercular agent erogorgiaene
摘要:
A total synthesis of erogorgiaene is described in 16 steps. The synthesis relies upon a highly diastereoselective intramolecular Friedel-Crafts reaction of an oxetane derived via an asymmetric syn aldol coupling. (c) 2007 Published by Elsevier Ltd.
Benzothiazines in Synthesis: Studies Directed toward the Synthesis of Erogorgiaene
作者:Michael Harmata、Xuechuan Hong、Peter R. Schreiner
DOI:10.1021/jo701935s
日期:2008.2.1
The use of benzothiazenes for the formal total synthesis of erogorgiaene and stereoselective total syntheses of two diastereomers of this natural product is described. In particular, the stereochemical course of a radical cyclization anticipated to give the correct relative stereochemistry for the synthesis of erogorgiaene is discussed utilizing both experimental and computational data.
Protecting Group Free Formal Total Synthesis of the Antitubercular Agent Erogorgiaene
作者:Jhillu S. Yadav、Bodakuntla Thirupathaiah、Ahmad Al Khazim Al Ghamdi
DOI:10.1002/ejoc.201101269
日期:2012.4
The formaltotalsynthesis of the antitubercularagenterogorgiaene was achieved in 12 steps by using a protectinggroupfree strategy. The synthesis involves an enamine-mediated 1,4-addition, an aldol condensation, dehydrogenation, Wittig olefination, intramolecular Friedel–Crafts cyclization, TEMPO-BAIB-mediated oxidation, and Evans auxiliary based diastereoselective methylation.