2-(3,4-difluoroanilino)-3,7-dihydropurin-6-one

1-ethyl-6,7-difluoro-4-oxoquinoline-3-carboxylic acid

4,5-dichloro-2-(3,4-difluorophenyl)pyridazin-3-one

2-(3,4-二氟苯基)-4,4,5,5-四甲基-1,3,2-二噁硼烷

(2-amino-4,5-difluorophenyl)-(2-chlorophenyl)methanone