methyl 3-[(6-methoxypyridin-3-yl)amino]prop-2-enoate

dimethyl 4-(benzoyloxy)-4-phenylhepta-2,5-diynedioate

methyl 4-oxo-4-phenylbut-2-ynoate

methyl 4-oxopent-2-ynoate

1-苯基戊烷-1,3-二酮