(8Z)-3,8-diphenyl-2,5,6,7-tetrahydro-1,4,7-thiadiazonine

2-phenacylsulfonyl-1-phenylethanone

(3-benzoylnaphthalen-2-yl)-phenylmethanone

6,9a-diphenyl-2,3,4,9-tetrahydro-1H-pyrimido[2,1-c][1,4]thiazine

(2-benzoyl-9-methylcarbazol-3-yl)-phenylmethanone