Synthesis of (+)-Lentiginosine and Its Pyrrolizidine Analogue Based on Intramolecular Cyclization of α-Sulfinyl Carbanions

被引:19
|
作者
Du-a-man, Sakkarin [1 ,2 ]
Soorukram, Darunee [1 ,2 ]
Kuhakarn, Chutima [1 ,2 ]
Tuchinda, Patoomratana [1 ,2 ]
Reutrakul, Vichai [1 ,2 ]
Pohmakotr, Manat [1 ,2 ]
机构
[1] Mahidol Univ, Fac Sci, Dept Chem, Bangkok 10400, Thailand
[2] Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Bangkok 10400, Thailand
关键词
Natural products; Chiral pool; Diastereoselectivity; Carbanions; Cyclization; ASYMMETRIC SYNTHESES; CONCISE SYNTHESES; POLYHYDROXYLATED ALKALOIDS; STEREOSELECTIVE-SYNTHESIS; INDOLIZIDINE ALKALOIDS; MANNOSIDASE INHIBITOR; SYNCYTIUM FORMATION; NATURAL OCCURRENCE; FORMAL SYNTHESIS; D-SWAINSONINE;
D O I
10.1002/ejoc.201301671
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A synthesis of (+)-lentiginosine and its pyrrolizidine analogue was accomplished in six steps, starting from L-(+)-tartaric acid. The key step of these syntheses involves the intramolecular cyclization of -sulfinyl carbanions for the construction of the indolizidine or pyrrolizidine ring.
引用
收藏
页码:1708 / 1715
页数:8
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