Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A number of 2-oximino- and 2-diazo-3-ketosteroids have been synthesized starting from 4,4-dimethyl-cholest-5-en-3-one and 17β-hydroxy-4,4-dimethylandrost-5-en-3-one. Among these compounds are the first recorded examples of A-ring steroidal α-diazoketones.