R. Velten et al., CRIPOWELLIN-A AND CRIPOWELLIN-B, A NOVEL TYPE OF AMARYLLIDACEAE ALKALOID FROM CRINUM-POWELLII, Tetrahedron letters, 39(13), 1998, pp. 1737-1740
Two novel Amaryllidaceae alkaloids named cripowellin A (1) and B (3) w
ere isolated from bulbs of Crinum powellii. Their structures were eluc
idated by spectroscopic investigations and confirmed by X-ray analysis
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