Painting over oil based trim paint
One coat might be very optimistic with anything. I would scuff sand, use a GOOD adhesion primer- low voc- I think Zinser Zero is pretty good, ( i can find it only at Menards if yiou have that) , Smart prime is very good but a bit more voc. Then a quality trim paint made for the job. I don't think Natura is, but if you insist on no smell v quality, that might be ok. Aura Satin would be my choice. Very low voc.
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