ethyl 2,6,6-trimethylcyclohex-2-ene-1-carboxylate

ethyl 3-(3,3-dimethyloxiran-2-yl)but-2-enoate

1-(6-methoxy-2,2,4-trimethylquinolin-1-yl)ethanone

3,3'-二氧基二[3,5,5-三甲基-1,2-二氧戊环]

4,4,6-trimethyl-1,3-dihydropyrimidin-2-one