for the following products
3,4-Dihydro-7-(4-bromobutoxy)-2(1H)-quinolinone | 7-(4-Bromobutoxy)-1,2,3,4-tetrahydroquinoline-2-one | 7-(4-Bromobutoxy)-3,4-dihydro-2(1H)-quinolinone | 7-(4-Bromobutoxy)-3,4-dihydroquinolin-2-one and (1H)-7-(4'-bromobutoxy)-3,4-dihydro-2-quinolinone
