3,4-Difluoro-2'-methylbenzophenone

2-Iodo-3',4',5'-trifluorobenzophenone

2-Chloro-3-(3-ethoxycarbonylbenzoyl)pyridine

2-chloro-5-(4-ethoxycarbonylbenzoyl)pyridine

5-(2-Chloro-3-pyridyl)-5-oxovaleronitrile

Ethyl 5-(2-furanoyl)-2-furoate

2-Chloro-5-(5-chlorovaleryl)pyridine

2-Chloro-5-(3-oxocyclohexyl)thiophene

3-(3-cyanobenzoyl)thiophene

3-(4-Fluorobenzoyl)thiophene

3-(3-Chloro-4-fluorobenzoyl)thiophene