3-(methoxymethyl)-4-(2-methylpiperidin-1-yl)benzoic acid 、
ethyl 4-{3-[amino(hydroxyimino)methyl]phenoxy}butanoate 在
ethyl 4-(3-{5-[3-(methoxymethyl)-4-(2-methylpiperidin-1-yl)phenyl]-1,2,4-oxadiazol-3-yl}phenoxy)butanoate 、 crude mixture 、 c-hex 、
ethyl acetate dichloromethane 作用下,
生成 ethyl 4-(3-{5-[3-(methoxymethyl)-4-(2-methylpiperidin-1-yl)phenyl]-1,2,4-oxadiazol-3-yl}phenoxy)butanoate