5-hydroxy-3,4-dihydroisoquinolin-1(2H)-one

3,4-DIHYDRO-5-HYDROXY-1(2H)-ISOQUINOLINONE

5-HYDROXY-3,4-DIHYDRO-2H-ISOQUINOLIN-1-ONE

5-HYDROXY-1,2,3,4-TETRAHYDROISOQUINOLIN-1-ONE