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

页码：O117 / O119

页数：3

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