上游原料
5-alpha,10-alpha-Epoxy-5',5'-dimethylspiro[9(11)-estrene-3,2'-1,3-diaxan]-17-beta-olBromo[4-(dimethylamino)phenyl]magnesium11-beta-[4-(Dimethylamino)phenyl]-5',5'-dimethylspiro[9-estrene-3,2'-1,3-dioxane]-5-alpha,17-beta-diol11-beta-[4-(Dimethylamino)phenyl]-5-alpha-hydroxy-5',5'-dimethylspiro[9-estrene-3,2'-1,3-dioxan]-17-one11-beta-[4-(Dimethylamino)phenyl]-5-alpha-hydroxy-5',5'-dimethyl-19-epi-spiro[9-estrene-3,2'-1,3-dioxan]-17-one2-(2-Propynyl)tetrahydro-2H-pyran11beta-[4-(Dimethylamino)phenyl]-5alpha,17alpha-dihydroxy-13alpha-methyl-17beta-[3-(tetrahydropyran-2-yl)-1-propynyl]gonan-3-one propyleneketal
