STUDIES ON THE CHEMICAL CONSTITUENTS OF CROOMIA JAPONICA MIQ
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Abstract
A new steroid alkaloid, namely croomionidine (Ⅱ), together with four known compounds pachysamine A (Ⅰ), croomine (Ⅲ), didehydrocroomine (Ⅳ) and β-sitosterol were isolated from the roots of Croomia japonica Miq.. Their structures were identified by IR, MS, 1H NMR, 13C NMR and chemical conversion.
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