JOURNAL OF CHEMICAL RESEARCH-S, no.4, pp.236-237, 2005 (SCI-Expanded)
Crystallographic studies have shown that the oxidation of 3 beta,6 beta-dihydroxy-5 beta-methyl-19-norsteroidal 9(10)-alkenes with chromium trioxide leads to 9 alpha,10 alpha-epoxides as minor products.