PROCESS FOR THE PREPARATION OF CORTEXOLONE 17alpha-PROPIONATE AND NEW HYDRATED CRYSTALLINE FORM THEREOF
摘要:
The present invention is directed to a process for the preparation of cortexolone 17α-propionate, comprising a hydrolysis reaction of an ortho-ester of formula (III)
in which R is a hydrogen atom or a methyl group,
in the presence of a dilute solution of acetic acid.
The present invention is also directed to a hydrated crystalline form of cortexolone 17α-propionate obtained by such process.