An expedient synthesis of [16,16,17-2H3)-epitestosterone via a one pot deuteration and reduction of the 17-ketone followed by epimerization of a deuterated alcohol
摘要:
The 17-Oxo group in androstane derivatives was reduced by sodium in deuterium oxide to [17-H-2]-17 beta-alcohol. The 17 beta-tosyloxy group of 4 was found to be stable under the conditions of the i-steroid rearrangement. The S(N)2 reaction of 17 beta tosylate 6 with potassium nitrite yielded the 17 alpha alcohol 7 without the loss of deuterium.