88247-84-1
7alpha-甲基-3,3-二甲氧基-5(10)-雄烯-17-酮
+
74-86-2
乙炔
→
~91%
105186-33-2
Tibolone 3-Dimethyl Ketal
63841-74-7
7α-methyl-3,17-dioxoandrost-4-en-19-al
105186-32-1
7α-methylestr-5(10)-ene-3,17-dione