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. 1999 Aug;62(8):1158-9.
doi: 10.1021/np980565x.

5-Oxonoraporphines from Mitrephora cf. maingayi

N H Lee  1 , Y J Xu, S H Goh
Affiliations

5-Oxonoraporphines from Mitrephora cf. maingayi

N H Lee et al. J Nat Prod. 1999 Aug.

Abstract

Two new 5-oxonoraporphines, 1 and 2, together with three known compounds, ouregidione, 3-methoxycepharadione B, and isoelemicin, have been isolated from the bark of Mitrephora cf. maingayi. Structures of 1 and 2 were determined to be 1,2,3-trimethoxy-5-oxonoraporphine and 1,2-dimethoxy-3-hydroxy-5-oxonoraporphine on the basis of NMR and MS studies.

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