abstract |
1451845 Steroid spirooxiranes ROUSSELUCLAF 6 Feb 1974 [6 Feb 1973] 01134/76 Divided out of 1451844 Heading C2U The invention comprises compounds of formula (wherein R 2 is H or Me, and Re is Me or Et), and their preparation from the corresponding 17-ones by reaction with a trimethylsulphonium bromide or iodide in the presence of a base. |