9-[2-({bis[(pivaloyloxy)methoxy]phosphinyl}methoxy)ethyl]-6-[(hydroxymethyl)amino]purine

头孢妥仑匹酯

(3-oxocyclohexen-1-yl)methyl 2,2-dimethylpropanoate

7-苄氧基-6-甲氧基-3-((特戊酰氧基)甲基)-3,4-二氢喹唑啉-4-酮

7-(2-acetoxy-3-morpholinopropoxy)-4-chloro-6-methoxyquinazoline