1807-15-4Relevant academic research and scientific papers
TRANSFORMED STEROIDS. 186. USE OF THE DIACETOXYIODOBENZENE-IODINE SYSTEM FOR THE CONVERSION OF EPIMERIC 17-ETHYNYLANDROST-4-EN-17-OL-3-ONES TO PREGNANES
Turuta, A. M.,Vesela, I. V.,Kamernitskii, A. V.,Vlakhov, Rodoslav
, p. 2508 - 2511 (1991)
Epimeric 17-acetoxy-17-ethynylandrost-4-en-3-ones react with diacetoxyiodobenzene and iodine in acetic acid or methanol in an unusual manner to give 17-acetoxy-21,21-diiodo-17-pregn-4-en-3,20-diones, which are then converted to 21-monoiodides and 21-aceta
Lipase-catalyzed preparation of corticosteroid 17α-esters endowed with antiandrogenic activity
Ferraboschi, Patrizia,Mieri, Maria De,Ragonesi, Laura
, p. 4610 - 4612 (2008)
Several 17α-monoesters of cortexolone and its Δ9-derivative are endowed with antiandrogenic activity. Their synthesis can be accomplished by means of a lipase-catalyzed chemoselective alcoholysis of the corresponding 17α,21-diesters.
Cyanohydrin process
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, (2008/06/13)
Using cyanohydrin intermediates, 17-keto steroids are transformed to corticoids and 17α-acyl progesterones.
Simple Route for Elaboration of the Hydroxy-ketone and Dihydroxy-acetone Side-chains of Corticosteroids from 17-Oxo-steroids
Nedelec, Lucien,Torelli, Vesperto,Hardy, Michel
, p. 775 - 777 (2007/10/02)
α-Formylaminoacrylic esters, produced by the condensation of ethyl isocyanoacetate with 17-oxo-steroids have been reduced selectively to give the corresponding alcohols; the latter gave, in high yield, the hydroxyacetyl side-chain on acidic hydrolysis or the dihydroxy-acetone side-chain after appropriate oxidation and hydrolysis.
