IRIDOID GLYCOSIDES FROM PENSTEMON SPECIES - A C-5, C-9 TRANS IRIDOID AND C-8 EPIMERIC PAIRS

被引：40

作者：

FODERARO, TA

STERMITZ, FR

机构：

[1] Department of Chemistry, Colorado State University, Fort Collins

来源：

PHYTOCHEMISTRY | 1992年 / 31卷 / 12期

基金：

美国国家科学基金会;

关键词：

PENSTEMON-SECUNDIFLORUS; P-AURIBERBIS; P-NITIDUS; SCROPHULARIACEAE; IRIDOID GLYCOSIDES; ACETOPHENONE GLYCOSIDE; (5-ALPHA-H)-6-EPIDIHYDROCORNIN; HASTATOSIDE; 8-EPIHASTATOSIDE; BETA-DIHYDROHASTATOSIDE; PENSTEMOSIDE; 10-GRISELINOSIDIC ACID; 10-HYDROXYEPIHASTATOSIDE;

D O I：

10.1016/0031-9422(92)80441-G

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The following new iridoid glycosides were isolated from Penstemon species: (5alphaH)-6-epidihydrocornin (the first iridoid glycoside with a trans-fused cyclopentanopyran ring system), 8-epihastatoside, 10-hydroxyepihastatoside, 10-griselinosidic acid, and 10-benzoylcatalpol. The new glycoside 3-methoxy-4-primeverosylacetophenone was also identified. In addition to the trans-fused iridoid glycoside, P. secundiflorus yielded two pairs of C-8 epimeric iridoids. The presence of these compounds suggests a unique anomaly in the normal cyclization mechanism from a monoterpene precursor for this species.

引用

页码：4191 / 4195

页数：5

共 25 条

[1]

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