64502-89-2
1-hydroxypentan-2-one
+
57-13-6
尿素
→
100791-01-3
4-propyl-1,3-dihydroimidazol-2-one
41172-98-9
1-amino-2-pentanone monohydrochloride
23358-62-5
DL-norvaline ethyl ester, hydrochloride