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Short Paper | Regular issue | Vol 87, No. 12, 2013, pp.2651-2657
Published online, 23rd October, 2013
DOI: 10.3987/COM-13-12853
3,4-Dihydro-2H,5H-pyrano[3,2-c]chromene and Benzophenone Derivatives from Cultured Lichen Mycobionts of Vietnamese Graphis sp.

Yukiko Takenaka,* Shota Taguchi, Duy Hoang Le, Nobuo Hamada, and Takao Tanahashi

*Organic chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan


Spore-derived mycobionts of the lichen Graphis sp. collected in Vietnam were cultivated on a malt-yeast extract medium supplemented with 10% sucrose and their metabolites were investigated. Two new phenolic compounds 2 and 3 were isolated along with proserin A (1). Their structures were determined by spectroscopic methods.