Epimeric Excolides from the Stems of Excoecaria agallocha and Structural Revision of Rhizophorin A

被引：16

作者：

Annam, S. Ch. V. Appa Rao ^{[1
]}

Ankireddy, Madhu ^{[1
]}

Sura, Madhu Babu ^{[1
]}

Ponnapalli, Mangala Gowri ^{[1
]}

Sarma, Akella V. S. ^{[2
]}

Basha, Jeelani S. ^{[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：

ORGANIC LETTERS | 2015年 / 17卷 / 11期

关键词：

MANGROVE FLORA SOURCE; NATURAL-PRODUCTS; DITERPENOIDS; CHEMISTRY;

D O I：

10.1021/acs.orglett.5b01257

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Excolides A-B (1-4) represent the first examples of a new class of secolabdanoids with an unprecedented framework, which were isolated from the stems of Excoecaria agallocha. Their structures were determined by spectroscopic analysis, chemical modifications, CD, and single-crystal X-ray analysis (1 and 4) as excolide A (1), 11-epi-excolide A (2), 11,13-di-epi-excolide A (3), and excolide B (4). In addition, the structure of rhizophorin A (7), a novel bicyclic secolabdanoid, was revised as excolide A (1).

引用

页码：2840 / 2843

页数：4

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