6-(4-(N,N-bis(4-((2-ethylhexyl)oxy)phenyl)amino)phenyl)-4-oxo-4H-cyclopenta[2,1-b: 3,4-b']dithiophene-2-carbaldehyde
4-oxo-6-(4-(p-tolyl)-1,2,3,3a,4,8b-hexahydrocyclopenta[b]indol-7-yl)-4H-cyclopenta[2,1-b: 3,4-b']dithiophene-2-carbaldehyde
6-{5-{4-[N,N-bis(4-methylphenyl)amino]phenyl}-3,4-ethylenedioxythiophene-2-yl}-4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one-2-carbaldehyde
2-cyano-3-{6-{2-{4-[N,N-bis(4-methylphenyl)amino]phenyl}-3,4-ethylenedioxy thiophen-5-yl}-4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one-2-yl}acrylic acid
2-cyano-3-{6-{2-{4-[N,N-bis(4-methylphenyl)amino]phenyl}thiophene-5-yl}-4H-cyclopenta[2,1-b:3,4-b']dithiophen-4-one-2-yl}acrylic acid