上游原料
(13S)-13-methyl-11-methylene-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione(13S,15S)-15-hydroxy-13-methyl-11-methylene-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione15-Alpha-hydroxy-11-methylenespiro[estra-4-ene-3,2'-[1,3]dithiolan]-17-one; 15-Alpha-hydroxy-11-methylenespiro[estra-4-ene-3,2'-[1,3]dithiolan]-17-one11-Methylenespiro[estra-4,15-diene-3,2'-[1,3]dithiolan]-17-one; 11-Methylenespiro[estra-4,15-diene-3,2'-[1,3]dithiolan]-17-one17-alpha-Ethynyl-11-methylenespiro[estra-4,15-diene-3,2'-[1,3]dithiolan]-17-beta-ol; 17-alpha-Ethynyl-11-methylenespiro[estra-4,15-diene-3,2'-[1,3]dithiolan]-17-beta-olEthynylpotassium; Potassium acetylyde1,2-ethanedithiol
