7beta-螺内酯

(8R,9S,10R,13S,14S,17S)-17-ethenyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one

螺内酯

(8R,9S,10R,13S,14S)-17-羟基-17-(2-碘乙炔基)-10,13-二甲基-2,8,9,11,12,14,15,16-八氢-1H-环戊二烯并[a]菲-3-酮

21-Brom-17-(formyloxy)-4-pregnen-3,20-dion