Oleoyl rhymes with:
boil, boyle, britoil, broil, coil, coile, coyle, croyle, doyle, embroil, foil, foyle, gatoil, guilfoil, hoyle, lukoil, moyl, moyle, o'boyle, oboyle, oil, recoil, roil, royle, soil, spoil, statoil, toil, uncoil
Oleoyl sounds like:
ohl, oil, oilwell, oily, ol', ola, olah, olay, ole, olea, oleo, oley, oliwa, olley, ollie, ollila, olly, ooley, owl, oyola