3-methoxy-11,12,14,15,16,17-hexahydro-cyclopenta[a]phenanthrene-13-carboxylic acid

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

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

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

7-methoxy-2-methyl-1-methylene-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid methyl ester