O Kodama, H Ichikawa, T Akatsuka, V Santisopasri, A Kato, Y Hayashi
Index: J. Nat. Prod. 56(2) , 292-4, (1993)
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Rhinacanthus nasutus (Acanthaceae) gave a new antifungal naphthopyran derivative. The structure of the compound was elucidated by spectroscopic methods as 3,4-dihydro-3,3-dimethyl-2H-naphtho[2,3-b]pyran-5,10-dione [1].