Natural Product Research · 2003 · 15 citations · 6 references
From woods of Picrasma crenata, a new stereoisomer dihydronorneoquassin was obtained together with others well knowns dihydronorneoquassin, parain, alpha-neoquassin, beta-neoquassin and quassin. The structures were determined by spectroscopic data and chemical evidence.
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New antiulcer quassinoids from Eurycoma longifolia
H. Tada, Fumio Yasuda, K. Otani et al. · European Journal of Medicinal Chemistry · 1991 · 99 citations
Picrasane quassinoids from Picrasma javanica
Kazuo Koike, Mika Yokoh, Mika Furukawa et al. · Phytochemistry · 1995 · 28 citations
Quassinoids from Quassia amara
P. Barbetti, Giuliano Grandolini, Giuseppe Fardella et al. · Phytochemistry · 1993 · 22 citations
A new neoquassin derivative from Quassia amara☆
Giuliano Grandolini, C.G. Casinovi, P. Barbetti et al. · Phytochemistry · 1987 · 16 citations