CRYSTAL-STRUCTURE OF 14-DEOXY-11,12-DIDEHYDRO-ANDROGRAPHOLIDE - A DITERPENOID

被引：4

作者：

GUPTA, VK

RAJNIKANT

GOSWAMI, KN

MAZUMDAR, SK

GUPTA, BD

BANERJEE, SK

机构：

[1] SAHA INST NUCL PHYS,DIV CRYSTALLOG & MOLEC BIOL,CALCUTTA 64,INDIA

[2] REG RES LAB,JAMMU 180001,INDIA

来源：

CRYSTAL RESEARCH AND TECHNOLOGY | 1993年 / 28卷 / 03期

关键词：

D O I：

10.1002/crat.2170280316

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The crystal structure of 14-deoxy-11, 12-didehydroandrographolide has been determined by X-ray structure analysis. The compound crystallizes in the trigonal space group P3(1) with cell parameters a = b = 15.860(3), c = 6.437(2) angstrom. The structure has been solved by direct methods and refined to R = 0.048. The six-membered rings are trans-fused and both are in the chair conformation. The furan ring is planar with maximum deviation -0.01 1(4) angstrom for C(14). Molecules are held together by hydrogen bonds.

引用

页码：359 / 364

页数：6

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