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Pregn-5-ene-3,ll,20-trion

Jervine, one of the most readily available Veratrum alkaloids, was the starting material for the synthesis of C-nor-D-homo steroid hormone analogs. Kupchan and Abu El-Haj (31) degraded jervine to the 3 8-hydroxy-14(1312 8-H)-a6eo-androst-5-ene-ll,17-dione (28) and prepared 17a-hydroxy-14(13 12)3H)-a6eo-pregn-4-ene-3,ll,20-trione (29) and its 17(8-isomer (30). [Pg.9]

Alumina-catalysed cyclization of 3, 20 -diacetoxy-8,9-seco-5a-pregnane-8,9, 11-trione (312) provided a substance with a 6-5-7-5 ring system, i.e. 3j3,20j -diacetoxy-9(8 —> 7)ahco-5a-pregn-7(9)-ene-8,ll-dione(313). " ... [Pg.390]

See other pages where Pregn-5-ene-3,ll,20-trion is mentioned: [Pg.86]    [Pg.98]    [Pg.99]    [Pg.52]    [Pg.58]    [Pg.321]    [Pg.86]    [Pg.98]    [Pg.99]    [Pg.52]    [Pg.58]    [Pg.321]    [Pg.98]    [Pg.305]    [Pg.400]    [Pg.10]   
See also in sourсe #XX -- [ Pg.21 , Pg.86 ]



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