A neo-clerodane diterpene from Teucrium tomentosum

被引：6
|
作者：
Devi, SS
Malathi, R
Rajan, SS
Aravind, S
Krishnakumari, GN
Ravikumar, K
机构：
[1] Univ Madras, Dept Crystallog & Biophys, Madras 600025, Tamil Nadu, India
[2] SPIC Sci Fdn, Madras 600032, Tamil Nadu, India
[3] Indian Inst Chem Technol, Hyderabad 500007, Andhra Pradesh, India
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2004年 / 60卷
关键词：
D O I：
10.1107/S1600536803028745
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
A neo-clerodane diterpene, 15-hydroxy-15,16-epoxy-6alpha-neocleroda-3,13(16),14-triene-18,19:20,12-diolide, C20H22O6, showing antifeedant activity against lepidopterous pests, has been isolated from Teucrium tomentosum and characterized by NMR and X-ray crystallographic methods. The crystallographic studies reveal that the cyclohexene and cyclohexane rings adopt a half-chair and a chair conformation, respectively. The furan ring exhibits rotational disorder. The molecules in the crystal structure are stabilized by a network of O-H...O and C-H...O hydrogen bonds.
引用
收藏
页码：O117 / O119
页数：3
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