Total synthesis of cis-solamin and its inhibitory action with bovine heart mitochondrial complex I
摘要:
A convergent total synthesis of cis-solamin (1a) and its diastereomer (1b) was accomplished. A key reaction of this approach was the use of VO(acac)(2)-catalyzed diastereoselective epoxidation of (Z)-bis-homoallylic alcohol 3 followed by spontaneous cyclization for the cis-THF ring formation. By comparison of the optical rotation of the two possible diastereomers, it is suggested that the absolute configuration of natural cis-solamin is 1a. Inhibitory action of synthetic 1a and 1b with bovine heart mitochondrial complex I are reported. (C) 2004 Elsevier Ltd. All rights reserved.
Total Synthesis and Preliminary Biological Evaluation of <i>cis</i>-Solamin Isomers
作者:Alex R. L. Cecil、Yulai Hu、María J. Vicent、Ruth Duncan、Richard C. D. Brown
DOI:10.1021/jo049909g
日期:2004.5.1
An efficient totalsynthesis of cis-solamin (1) has been achieved in 21% overall yield and with a longest linear sequence of just 11 steps from aldehyde 8. A key feature of the approach was the use of asymmetric permanganate-promoted oxidative cyclization to introduce four of the five required stereocenters in a single step. The use of robust and chemoselective methodology meant that the use of protecting
Total synthesis of cis-solamin A was accomplished without using protecting groups starting from (-)-muricatacin in 11 steps with an overall yield of 4.5%. The backbone of cis-solamin A was constructed by olefin cross-metathesis between the tetrahydrofuran moiety and gamma-lactone moiety. An enzymatic kinetic transesterification procedure was successfully applied to the synthesis of an optically pure gamma-lactone moiety. (C) 2007 Elsevier Ltd. All rights reserved.
Synthesis of solamin type mono-THF acetogenins using cross-metathesis
The total synthesis of mono-THF acetogenins, cis-solamin A and B, and reticulatacin, was accomplished starting with muricatacin. The backbone of the mono-THF acetogenins was constructed by olefin cross-metathesis between the tetrahydrofuran moiety and gamma-lactone moiety. An enzymatic kinetic transesterification procedure was successfully applied to the synthesis of an optically pure gamma-lactone moiety. Notably, cis-THF compounds were obtained without using protective groups. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis of <i>cis-</i>Solamin Using a Permanganate-Mediated Oxidative Cyclization
作者:Alexander R. L. Cecil、Richard C. D. Brown
DOI:10.1021/ol026669n
日期:2002.10.1
[GRAPHICS]cis-Solamin (1) and its diastereoisomer 14 have been synthesized in 13 steps using the diastereoselective permanganate-promoted oxidative cyclization of 1,5-dienes to create the tetrahydrofuran diol core. Notably, no protecting groups are required during the stages of fragment assembly.
[GRAPHICS]A convergent total synthesis of cis-solamin and its diastereomer was accomplished using VO(acac)(2)-catalyzed diastereoselective epoxidation followed by cyclization of bis-homoallylic alcohol as the key step. By comparison of the optical rotation of two possible diastereomers, it is suggested that the absolute configuration of natural cis-solamin is 1a.