A PROCESS FOR THE MANUFACTURE OF 21,21-DICHLOROSTEROIDS OF THE PREGNANE SERIES AND NEW 21,21-DICHLORO STEROIDS OF THE PREGNANE SERIES

摘要

21,21-Dichlorosteroids of the formula WHEREIN R1 is a hydrogen or chlorine atom; R2 is a hydrogen atom, a fluorine atom, or a methyl group; R3 is a hydrogen atom or a methyl group; R4 is a hydrogen atom or a free or esterified hydroxy group; and C1-C2 represents a single or double bond joining the carbon atoms at the 1- and 2-positions, have anti-inflammatory activity.