3,9-dimethoxy-6aα,6bβ,12aβ,12bα-tetrahydrodibenzo(a,g)biphenylene-5,11(6H,12H)dione

[3-Carboxymethyl-2,4-bis-(4-methoxy-phenyl)-cyclobutyl]-acetic acid

5,5-diethoxy-1-methoxypent-1-en-3-yne

1,1'-((1R,2R,3S,4S)-2,4-bis(4-methoxyphenyl)cyclobutane-1,3-diyl)bis(2-diazoethan-1-one)