20024-63-9
3-ethyl-3-phenylazetidin-2-one
→
7215-19-2
3-ethyl-3-phenylazetidine
24130-91-4
2-Aethyl-2-phenylmalonsaeuremonoamid
42282-82-6
3-ethyl-3-phenylazetidine-2,4-dione