Preaustinoid A: a meroterpene produced by Penicillium sp.

被引：4
|
作者：
Maganhi, Stella H. [1 ]
Fill, Taicia Pacheco [1 ]
Rodrigues-Fo, Edson [1 ]
Caracelli, Ignez [2 ]
Zukerman-Schpector, Julio [1 ]
机构：
[1] Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Estadual Paulista, BioMat Phys Dept, BR-17033360 Bauru, SP, Brazil
来源：
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2009年 / 65卷
基金：
巴西圣保罗研究基金会;
关键词：
PROGRAM;
D O I：
10.1107/S1600536808043481
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The title meroterpene preaustinoid A (systematic name: methyl 15-hydroxy-2,6,6,10,13,15-hexamethyl-17-methylene-7,14,16-trioxotetracyclo[11.3.1.0(2,11).0(5,10)] heptadecane-1-carboxylate), C26H36O6, features a fused four-ring arrangement. Three rings are in different distorted chair conformations and the other is in a distorted boat conformation. The absolute configuration was established based on [alpha(D)] = -4.97 degrees (c = 1.10 g l(-1), CH2Cl2). In the crystal, the molecules are connected into supramolecular chains via O-H center dot center dot center dot O hydrogen bonds.
引用
收藏
页码：O221 / U1228
页数：12
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