Crepidine from Dendrobium crepidatum

Two comparatively simple indolizidine derivatives accompany crepidine (1) in Dendrobium crepidatum Lindl. Crepidamine (2), C18H25NO2, an optically inactive base, exhibits an n.m.r. spectrum similar to that of the tertiary base (3) obtained by the reaction of crepidine methiodide with base, apart from the... 

The structure of crepidine (57), a most intriguing alkaloid isolated from Dendrobium crepidatum, has been deduced by X-ray crystallographic analysis of its methiodide. An unusual but readily explained base-catalyzed fragmentation of crepidine methiodide [(64) — (65)] is given in the same report. " Apparently... 

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See also in sourсe #XX -- [ , ]

See also in sourсe #XX -- [ , ]

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