来自隐花萼囊花的二萜类化合物。

Diterpenoids from Calceolaria inamoena.

作者信息

Garbarino Juan A, Chamy María Cristina, Piovano Marisa, Espinoza Luis, Belmonte Eliana

机构信息

Departamento de Química, Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile.

出版信息

Phytochemistry. 2004 Apr;65(7):903-8. doi: 10.1016/j.phytochem.2004.02.003.

DOI:10.1016/j.phytochem.2004.02.003

PMID:15081292

Abstract

Four 9-epi-ent-labdanes were isolated from the aerial parts of Calceolaria inamoena. Their structures, 2beta-hydroxy-9-epi-ent-labda8(17)-13(E)dien-15-oic acid, 2beta-hydroxy-9-epi-ent-labda8(17)-13(Z)dien-15-oic acid, 2beta-hydroxy-9-epi-ent-labda8(17)-13(E)dien-15-al and 2beta-hydroxy-9-epi-ent-labda-8(17)-13(Z)dien-15-al, were established by spectroscopic methods including by analysis of 2 dimensional heteronuclear correlation experiments 1H/13C (normal and long range), and NOE and gs-sel-1D-NOESY and TOCSY of their methyl ester or acetyl derivatives.

摘要

从南美蒲包花地上部分分离出4种9-表-对映-半日花烷型化合物。通过光谱方法，包括分析二维异核相关实验1H/13C（常规和远程）以及它们甲酯或乙酰衍生物的NOE、gs-sel-1D-NOESY和TOCSY，确定了它们的结构，即2β-羟基-9-表-对映-半日花-8(17)-13(E)二烯-15-酸、2β-羟基-9-表-对映-半日花-8(17)-13(Z)二烯-15-酸、2β-羟基-9-表-对映-半日花-8(17)-13(E)二烯-15-醛和2β-羟基-9-表-对映-半日花-8(17)-13(Z)二烯-15-醛。