Synthesis and Spectroscopic Correlation of the Diastereoisomers of 2,3-Dihydroxy-2,6,8-trimethyldeca-(4Z, 6E)-dienoic Acid: Implications for the Structures of Papuamides A-D and Mirabamides A-D.
Synthesis and Spectroscopic Correlation of the Diastereoisomers of 2,3-Dihydroxy-2,6,8-trimethyldeca-(4Z, 6E)-dienoic Acid: Implications for the Structures of Papuamides A-D and Mirabamides A-D.
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DOI:
10.1016/j.tetasy.2008.09.031
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发表时间:
2008-11-17
影响因子:
--
通讯作者:
Lipton, Mark A.
中科院分区:
文献类型:
--
作者:
Ramamoorthy, Gurusankar;Acevedo, Cristina M.;Alvira, Edgardo;Lipton, Mark A.
All 4 diastereomeric possibilities for the 2,3-dihydroxy-2,6,8-trimethyldeca-(4Z,6E)-dienoic acid (Dhtda) residue, found in the cyclic depsipeptide natural products papuamides A-D and mirabamides A-D, were stereoselectively synthesized using a Z-selective Wittig reaction of both enantiomers of 2,4-dimethylhex-2-enyl-triphenylphosphonium bromide with all four diastereoisomers of ethyl-3-formyl-2-methyl-1,4-dioxaspiro[4,4]nonane-2-carboxylate. To elucidate the configuration of Dhtda, the 1H- and 13C-NMR spectra of the synthetic isomers were compared to those of the natural residue. On the basis of that comparison, it is suggested that the likely configuration of the diastereomer present in Dhtda residue is either (2R,3S,8S) or (2S,3R,8S) in the papuamides and mirabimides.
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影响因子:
1.8
作者:
BLANCHETTE, MA;CHOY, W;SAKAI, T
通讯作者:
SAKAI, T
DOI:
10.1039/p19910000667
发表时间:
1991-04-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
影响因子:
--
作者:
LEY, SV;ARMSTRONG, A;WOODS, M
通讯作者:
WOODS, M
影响因子:
2.7
作者:
Durieux-Smith, A.;Fitzpatrick, E.;Whittingham, J.
通讯作者:
Whittingham, J.
影响因子:
15
作者:
Ford, PW;Gustafson, KR;Boyd, MR
通讯作者:
Boyd, MR
影响因子:
3.6
作者:
Crich, D;Hao, XL
通讯作者:
Hao, XL