Bode HB, Zeeck A. Sphaerolone and dihydrosphaerolone, two bisnaphthyl-pigments from the fungus Sphaeropsidales sp. F-24'707.
PHYTOCHEMISTRY 2000;
54:597-601. [PMID:
10963453 DOI:
10.1016/s0031-9422(00)00145-x]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Two new bisnaphthalene compounds, sphaerolone (1) and dihydrosphaerolone (2), together with 2-hydroxyjuglone (9), were isolated from the culture broth of a Sphaeropsidales sp. (strain F-24'707) after inhibition of the regular proceeding 1,8-dihydroxynaphthalene (DHN) biosynthesis with tricyclazole. The structures of 1 and 2 were established by detailed spectroscopic analysis and present novel bisnaphthalenes. The biosynthetic origin of 1 and 2 as dimerization products of 1,3,8-trihydroxynaphthalene, an intermediate of the DHN biosynthesis, is discussed.
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