Asymmetric Total Synthesis and Structural Reassignment of Nervione

被引:0
作者
Phakdeeyothin, Kunita [1 ]
Li, Jian-Liang [2 ]
Hong, Yi-Tian [3 ]
Chein, Rong-Jie [1 ]
机构
[1] Acad Sinica, Inst Chem, Taipei 11529, Taiwan
[2] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
[3] Natl Taiwan Normal Univ, Dept Chem, Taipei 11677, Taiwan
关键词
ABSOLUTE-CONFIGURATION; DIASTEREOSELECTIVE REDUCTION; GLYCOSIDES; PLANT; ACIDS; METHODOLOGY; INDOLES;
D O I
10.1021/acs.joc.5c00258
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
We report the asymmetric total synthesis of optically active nervione in both (+) and (-) forms, a natural product initially isolated from Nervilia concolor in 2022. Beginning with commercially available resorcinol, optically pure nervione was synthesized in 10 steps, employing a combination of ortho-directed strategies and a crucial late-stage, Lewis acid-mediated, highly diastereoselective reduction. Discrepancies observed in circular dichroism (CD) spectra prompted the reassignment of nervione's absolute configuration from (3S, 8R) to (3R, 8S).
引用
收藏
页码:4389 / 4396
页数:8
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