(8R,9S,13S,14S)-2,3-Dimethoxy-13-methyl-1-(4-nitro-phenylazo)-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one

2-methoxy-19-norpregna-1,3,5(10)17(20)-tetraen-3-ol

2,4-dimethoxyestrone

3-(benzyloxy)-2-methoxyestra-1,3,5(10)-trien-17-one

3-O-(tert-butyl)dimethylsilyl-2-methoxy-17-(1-(3,4,5-trimethoxybenzyl)-1H-1,2,3-triazol-4-yl)estradiol