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Two stilbenoids from the orchid arundina bambusifolia

1993; Elsevier BV; Volume: 35; Issue: 1 Linguagem: Inglês

10.1016/s0031-9422(00)90535-1

1873-3700

P.L. Majumder, Sabari Ghosal,

Plant Molecular Biology Research

Isoarundinin-I and isoarundinin-II, two new stilbenoids, were isolated from the orchid Arundina bambusifolia which earlier afforded, besides arundinin [3,3′-dihydroxy-4-(p-hydroxybenzyl)-5-methoxybibenzyl], a number of other stilbenoids and a triterpenoid. The structures of isoarundinin-I and isoarundinin-II were established as 3′,5-dihydroxy-2-(p-hydroxybenzyl)-3-methoxybibenzyl and 3,3′-dihydroxy-2-(p-hydroxy-benzyl)-5-methoxy-bibenzyl, respectively, mainly from spectroscopic evidence.