Isomeric ent-Labdane-Type Diterpenoids from the Stems of Rhizophora mucronata

被引：3

作者：

Madhu, Ankireddy ^{[1
]}

Rao, Annam Suresh Chandra Venkata Appa ^{[1
]}

Sushma, Sukki ^{[1
]}

Gowri, Ponnapalli Mangala ^{[1
]}

Raju, Tuniki Venugopal ^{[2
]}

机构：

[1] Indian Inst Chem Technol, Nat Prod Chem Div, Hyderabad 500607, Andhra Pradesh, India

[2] Indian Inst Chem Technol, NMR Div, Hyderabad 500607, Andhra Pradesh, India

来源：

HELVETICA CHIMICA ACTA | 2014年 / 97卷 / 11期

关键词：

CHEMICAL-CONSTITUENTS; BEYERANE;

D O I：

10.1002/hlca.201400022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two new constitutional isomers of ent-labdane-type diterpenoids, 1 and 2, with an unusual seven-membered lactone moiety (i.e., 1), together with two known compounds, 3 and 4, were isolated from the acetone extract of Rhizophora mucronata. Their structures were elucidated as rhizomucronol A and B (1 and 2, resp.) by spectroscopic analyses and chemical evidence. The absolute configuration of 2 was established by applying the Mosher ester procedure.

引用

页码：1531 / 1538

页数：8