The structure of cercosporin, a deep red photosensitizing pigment isolated from the cultured mycelia of Cercospora kikuchii (Matsumoto et Tomoyasu) Gardner, has been elucidated as 1, 12-bis(2-hydroxypropyl)-2, 11-dimethoxy-6, 7-methylenedioxy-4, 9-dihydroxyperylene-3, 10-quinone(Ia). All substituents are symmetrically arranged and the molecule has a two-fold rotation axis. An unusual seven-membered methylenedioxy bridged system endows the molecule with the inherently dissymmetric nature. Isocercosporin(Ib), a stereoisomer of Ia, was separated and the stereochemistry and the molecular dissymmetry of both isomers were also discussed. © 1972, Japan Society for Bioscience, Biotechnology, and Agrochemistry. All rights reserved.
CITATION STYLE
Yamazaki, S., & Ogawa, T. (1972). The Chemistry and Stereochemistry of Cercosporin. Agricultural and Biological Chemistry, 36(10), 1707–1718. https://doi.org/10.1271/bbb1961.36.1707
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