Structures of a New Coumarin and a New Acridone Dimer from a Citrus Plant

HETEROCYCLES
1999.0

Abstract

A new coumarin, marshrin (1) and a new dimeric acridone alkaloid, citbismine-F (2) were isolated from the roots of Marsh grapefruit (Citrus paradisi Macf.). Structures of these new compounds were elucidated by spectral analyses especially by HMQC, HMBC and NOE experiments.

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