Boscialin (1), a new compound structurally related to the ionones and abscisic acid, and its 4′‐O‐glucoside 2 were isolated from the MeOH extract of the leaves of the African medicinal plant Boscia salicifolia. The structures of the two compounds were determined mainly by NMR spectroscopy and by acid hydrolysis of the glycoside.
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Pauli et al. (1990) studied this question.