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Precondylocarpine acetate

The structure deduced recently for andranginine (143) on the basis of H and n.m.r. spectra and a partial synthesis from precondylocarpine acetate has been independently confirmed by examination of the H n.m.r. spectrum of andrangininol (144) by the Fourier Transform Difference Spectra method.This technique. [Pg.227]

The first partial synthesis of andranginine (338) was reported by the French group in collaboration with Scott and Wei (125). Thermolysis of precondylocarpine acetate (344) at 100° in ethyl acetate afforded andranginine (338) in 28% yield, again via the didehydrosecodine (339). The other products of the reaction were not discussed at that time. [Pg.290]

Andranginine °" (92) from Craspidospermum verticillatum has a skeleton of an entirely novel type. Its inclusion in this sub-section is based on its partial synthesis from precondylocarpine acetate (93). The evidence so far advanced for the structure is a simple statement of and [given on (92)] n.m.r., u.v.,... [Pg.212]


See other pages where Precondylocarpine acetate is mentioned: [Pg.226]    [Pg.226]   
See also in sourсe #XX -- [ Pg.290 ]




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Precondylocarpine

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