4-丁基-2'-氟二苯甲酮

(2-fluorophenyl)-(2,4,6-trimethylphenyl)methanone

1,3-dimethylchromeno[2,3-c]pyrazol-4-one

2-(2-fluorophenyl)-5-phenyl-1,3-oxazole

methyl 2-methyl-4-oxochromene-3-carboxylate