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Paper | Regular issue | Vol 83, No. 7, 2011, pp.1603-1610
Published online, 11th May, 2011
DOI: 10.3987/COM-11-12228
New Furanocoumarins from the Fruits of Melicope triphylla

Ken-ichi Nakashima, Masayoshi Oyama,* Tetsuro Ito, Hiroko Murata, and Munekazu Iinuma

*Laboratory of Pharmacognosy, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan

Abstract

Four new furanocoumarins (14) were isolated from the fruits of Melicope triphylla (Rutaceae), together with two known coumarins (5, 6), nine flavonoids (715), two alkaloids (16, 17), and methyl p-geranyloxy-trans-cinnamate (18). The structures of the newly identified compounds were determined by extensive 1D- and 2D-NMR spectroscopic analyses to be linear-types of furanocoumarins bearing a hydroxyl or a hydroperoxy group on the geranyloxy side chain.