(3-ethoxy-10,13-dimethyl-2,7,8,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-17-yl) propanoate

1,1-diethoxy-4-methylcyclohexane

2,2-diethoxyheptane

3-(anilinomethylidene)chromene-2,4-dione

1-(diethoxymethyl)cyclohexene