The ^1^3C NMR of 17α-hydroxy-16β, 17β-dimethyl-D-homo-4,9(11)- androstandien-3,17α-dione and its derivatives
XU YANGDONG;NI YUAN;CHEN CHAOHUAN
Chin. J. Org. Chem. . 1988, (2): 161 -163 .