AN IMPROVED SYNTHESIS OF 18-NOR-17-KETOSTEROIDS AND APPLICATION OF THE METHOD FOR THE PREPARATION OF (3-BETA,5-BETA,13-ALPHA)-3-HYDROXYGONAN-17-ONE AND (3-BETA,5-BETA,13-BETA)-3-HYDROXYGONAN-17-ONE
Mc. Han et Df. Covey, AN IMPROVED SYNTHESIS OF 18-NOR-17-KETOSTEROIDS AND APPLICATION OF THE METHOD FOR THE PREPARATION OF (3-BETA,5-BETA,13-ALPHA)-3-HYDROXYGONAN-17-ONE AND (3-BETA,5-BETA,13-BETA)-3-HYDROXYGONAN-17-ONE, Journal of organic chemistry, 61(21), 1996, pp. 7614-7616