Three new triterpenoid derivatives, named (15a)-15-hydroxysoyasapogenol B (1), (7b,15a)-7,15dihydroxysoyasapogenol B (2), and (7b)-7,29-dihydroxysoyasapogenol B (3), were isolated from cultures of the plant endophytic fungus Pestalotiopsis clavispora. Their structures and relative configurations wer
Eremophilane-Type Sesquiterpenoids from the Fermentation Broth of Plant Endophytic Fungus Pestalotiopsis photiniae Isolated from the Chinese Podocarpaceae Plant Podocarpus macrophyllus
โ Scribed by Xiao-Long Yang; Su Zhang; Hua-Jie Zhu; Du-Qiang Luo; Xue-Yan Gao
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- German
- Weight
- 192 KB
- Volume
- 94
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
โฆ Synopsis
Abstract
Two new sesquiterpenoid esters, pestalotiopins B and C (1 and 2, resp.) related to the eremophilane class, together with one known compound, berkleasmin C (3), were isolated from the fermentation broth of the plant endophytic fungus Pestalotiopsis photiniae. Their structures and relative configurations were elucidated by extensive spectroscopic analysis including 1Dโ and 2DโNMR (HSQC, HMBC, and NOESY), and MS experiments. Compound 1 has an interesting lactam structure, and this type of sesquiterpenoid with a lactam structure is reported for the first time.
๐ SIMILAR VOLUMES