
Steroids p. 696 - 701 (1994)
Update date:2022-07-30
Topics: Synthesis Oxidation NMR spectroscopy Mass spectrometry Reduction Oxime Chemical Synthesis Steroidal Hapten
Pouzar, Vladimir
Fajkos, Jan
A synthesis of (19E)-3β,17-dihydroxy-20-oxopregn-5-en-19-al 19-(O-carboxymethyl)oxime (15), is reported.Hydride reduction of ketone 1 gave the (20R)-hydroxy derivative 2 as the main product.Formylation of 2 followed by cleavage of the epoxide ring and mil
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