Lactone derivatives of 17.beta.-carboxy, carbothio and amide androstane derivatives

摘要

Compounds of the androstane series are described having general formulaand solvates thereof, in which R1 represents O, S or NH; R2 individually represents OC(=O)C1-6 alkyl; R3 individually represents hydrogen, methyl (which may be in either the alpha or beta configuration) or methylene; or R2 and R3 together representwhere R6 and R7 are the same or different and each represents hydrogen or C1-6 alkyl; R4 and R5 are the same or different and each represents hydrogen or halogen and represents a single or a double bond. These compounds and their solvates have use in medicine as anti-inflammatory or anti-allergic agents.