1',5',7',8'-tetrahydrospiro[1,3-dioxolane-2,6'(2'H)-quinolin]-2'-one

1',5',7',8'-tetrahydro-1'-(phenylmethyl)spiro[1,3-dioxolane-2,6'(2'H)-quinolin]-2'-one

7-dimethylaminomethyl-1,4-dioxa-spiro[4.5]decan-8-one

1,4-dioxaspiro[4.5]dec-7-en-8-yloxy(trimethyl)silane