Studies on the Agarwood (Jinko). I. Structures of 2-(2-Phenylethyl) chromone Derivatives

Abstract

Six kinds of chromone derivatives, named AH₁, AH₂, AH₃, AH₄, AH₅ and AH₆, were isolated from agarwood (Jinko) from Kalimantan. Four constituents, AH₃, AH₄, AH₆ and AH₅, were characterized as 6-hydroxy-(I), 6-methoxy-(II) and 6, 7-dimethoxy-2-(2-phenylethyl) chromone (IV) and 6-methoxy-2-[2-(3-methoxyphenyl) ethyl] chromone (III), respectively.