3-methoxy-11,12,16,17-tetrahydro-13H-cyclopenta[a]phenanthrene-13-carboxylic acid

2-methoxy-5,7,8,9,10,10a-hexahydro-6H-chrysene-6a-carboxylic acid

2-methoxy-5,7,8,9-tetrahydro-6H-chrysene-6a-carboxylic acid ethyl ester