7-hydroxy-2-(2-hydroxyphenyl)-2,3-dihydrochromen-4-one

2-(1,3-dihydroxy-4,4,5,5-tetramethylimidazolidin-2-yl)phenol

(4-fluorophenyl)-(2-hydroxyphenyl)methanone

2-苯甲酰基苯并呋喃

2-[[2-(benzylamino)ethylamino]methyl]phenol