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New tetraphydroxy-2-(2-phenylethyl)chromone, tentatively named AH16 was isolated from agalwood, "Jinko", and the structure was characterized as (5R__-, 6R__-, 7S__-, 8R__-)-2-(2-phenylethyl)-5e', 6a, 7e, 8e'-tetraphydroxy-5, 6, 7, 8-tetraphydrochromone, assuming the cyclohexenyl ring to have a boat conformation.
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Konishi et al. (1989) studied this question.
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