New punctaporonins from two fungicolous isolates of Pestalotiopsis sp.
نویسندگان
چکیده
منابع مشابه
Punctaporonins N–S, New Caryophyllene Sesquiterpenoids from Cytospora sp.
Six new caryophyllene sesquiterpenoids, punctaporonins N-S (1-6), and three known ones, 6-hydroxypunctaporonins B (7), A (8), and E (9), have been isolated from solid cultures of Cytospora sp. The structures of 1-6 were elucidated primarily by NMR spectroscopy. The absolute configuration of 1 was assigned by X-ray crystallographic analysis of its S-MTPA ester. Compounds 2, 5, and 6 showed modes...
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Two new sesquiterpenes, 1β,5α,6α,14-tetraacetoxy-9α-benzoyloxy-7β H-eudesman-2β,11-diol (1) and 4α,5α-diacetoxy-9α-benzoyloxy-7βH-eudesman-1β,2β,11, 14-tetraol (2), were produced as stress metabolites in the cultured mycelia of Pestalotiopsis sp. Z233 isolated from the algae Sargassum horneri in response to abiotic stress elicitation by CuCl2. Their structures were established by spectroscopic ...
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ژورنال
عنوان ژورنال: Phytochemistry Letters
سال: 2016
ISSN: 1874-3900
DOI: 10.1016/j.phytol.2016.05.001