Asymmetric synthesis of naturally occurring (−)-seimatopolides A and B
作者:Rohan Kalyan Rej、Pratik Pal、Samik Nanda
DOI:10.1016/j.tet.2014.05.021
日期:2014.7
Asymmetric totalsynthesis of polyhydroxylated naturally occurring nonenolide seimatopolide A (3S,6S,7S,9R) and seimatopolide B (3S,6R,9R) is described in this article. An E-selective cross metathesis (CM) reaction between two suitable fragments followed by macrolactonization reaction is the main highlight of our synthesis for the two natural products. The fragment containing 6S,7S,9R stereocenters
The totalsynthesis of (−)-seimatopolide A is described in a linear fashion with high yielding steps. The key reactions include Lu’s isomerization, Sharpless asymmetric dihydroxylation and Kita’s macrolactonization.
Bhunia, Nisith; Das, Biswanath, Journal of the Indian Chemical Society, 2013, vol. 90, # 10, p. 1633 - 1642
作者:Bhunia, Nisith、Das, Biswanath
DOI:——
日期:——
Total Syntheses of Naturally Occurring Seimatopolide A and Its Enantiomer from Chiral Pool Starting Materials Using a Bidirectional Strategy
作者:Bernd Schmidt、Oliver Kunz、Monib H. Petersen
DOI:10.1021/jo302359h
日期:2012.12.7
Enantioselective total syntheses of both enantiomers of the recently isolated decanolide natural product seimatopolide A are described. The C2-symmetric building blocks (R,R)-hexa-1,5-diene-3,4-diol (derived from d-mannitol) and itsenantiomer (derived from l-(+)-tartrate) serve as key starting materials, which are elaborated in a bidirectional way using a selective mono-cross-metathesis, regio- and