1,2,3,4-Tetrahydro-1,6-naphthyridin-5-ol

1,2,3,4-Tetrahydro-[1,6]naphthyridin-8-ol

1,2,3,4-Tetrahydro-1,6-naphthyridin-5(6H)-one

1,6-Naphthyridin-5(1H)-one,2,3,4,6-tetrahydro-(9CI)