ethyl 3-acetamido-1-methylpyrazole-4-carboxylate

N-[2-methyl-4-(2-methylpropyl)-1,3-oxazol-5-yl]acetamide

叔丁胺基乙氧基乙醇

4-methyl-5-methylidenefuran-2-one

(2-methylpyridin-3-yl)methyl acetate