Crystal structure of 14-deoxyandrographolide

被引：0

作者：

Rajnikant

Gupta, VK

Singh, A

Lal, M

Gupta, BD

Varghese, B

机构：

[1] UNIV JAMMU,DEPT PHYS,XRAY CRYSTALLOG LAB,JAMMU 180004,INDIA

[2] UNIV JAMMU,NAT PROD CHEM DIV,JAMMU 180001,INDIA

[3] INDIAN INST TECHNOL,REG SOPHISTICATED INSTRUMENTAT CTR,MADRAS 600036,TAMIL NADU,INDIA

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION C-MOLECULAR MATERIALS | 1996年 / 6卷 / 04期

关键词：

andrographolide; organic structures; natural products; X-ray crystallography; ring conformation;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The title compound, 14-deoxyandrographolide (C20H30O4), a diterpenoid, crystallizes in the monoclinic space group P2(1) with unit cell parameters a = 6.719(3), b = 6.971(2) c = 19.329(2)Angstrom, beta = 93.20(2)degrees. The structure has been solved by direct methods and refined to a residual index R = 0.084. The six-membered rings are trans-fused and both are in the chair conformation. The furan ring is planar. Molecules are held together by C-H...O and O-H...O hydrogen bonds.

引用

页码：227 / 233

页数：7

共 7 条

[1] MINOR DITERPENOID CONSTITUENTS OF ANDROGRAPHIS-PANICULATA NEES [J].

BALMAIN, A ;

CONNOLLY, JD .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1973, (12) :1247-1251

[2]

Duax W. L., 1975, Atlas of Steroid Structures, V1

[3]

GUPTA BD, 1991, COMMUNICATION

[4] CRYSTAL-STRUCTURE OF 14-DEOXY-11,12-DIDEHYDRO-ANDROGRAPHOLIDE - A DITERPENOID [J].

GUPTA, VK ;

RAJNIKANT ;

GOSWAMI, KN ;

MAZUMDAR, SK ;

GUPTA, BD ;

BANERJEE, SK .

CRYSTAL RESEARCH AND TECHNOLOGY, 1993, 28 (03) :359-364

[5]

Johnson C. K., 1976, ORTEP Report ORNL-5138

[6]

Sheldrick G.M., 1986, SHELXS86. Program for Crystal Structure solution

[7]

Sheldrick G.M., 1993, SHELXL93, Program for the Refinement of Crystal Structure

← 1 →