2-oxo-1-(1-oxo-2-propylpentyl)-4-phenyl-3-pyrrolidinecarboxylic aci ethyl e |
3-carbethoxy-1-(dipropylacetyl)-4-phenyl-2-pyrrolidinone |
ethyl 2-oxo-1-(1-oxo-2-propylpentyl)-4-phenyl-3-pyrrolidinecarboxylate |
2-oxo-1-(1-oxo-2-propylpentyl)-4-phenyl-3-pyrrolidinecarboxylic aci ethyl ester |