121564-86-1
methyl 1-(2-methoxy-2-oxoethyl)-5-oxopyrrolidine-3-carboxylate
→
121564-87-2
methyl 1-(2-methoxy-2-oxoethyl)pyrrolidine-3-carboxylate
21472-89-9
1-氮杂双环[2.2.1]庚烷-3-酮