NEW STEROID DERIVATIVES OF PREGNA-4,9 (11), 17 (20) -TRIEN-3-ONA, ITS PREPARATION, ITS APPLICATION IN THE PREPARATION OF STEROID COMPOUNDS OF TYPE PREGNA-4,9 (11), 16-TRIEN- 3.20-DIONA AND NEW INTERMEDIATE COMPOUNDS.

摘要

THE INVENTION REFERS TO COMPOUNDS (I): IN WHICH HAL IS CHLORINE OR JOKE, R IS ALKYL (1 OR A SILILED REST, K IS A GROUP (N = 2 OR 3) AND THE WAVY TRAILS SYMBOLIZE THE POSSIBLE EXISTENCE OF 2 ISOMERS, THEIR PREPARATION, THEIR APPLICATION IN THE PREPARATION OF THE COMPOUNDS (A): WHERE R1 IS AN ACIL (1-8 C) AND NEW INTERMEDIARIES.