ethyl 2,6-dimethyl-3-oxohept-6-enoate

2,5-二甲基-1,5-己二烯

4-methyl-1-phenylpent-4-en-1-one

6-甲基-6-庚烯-2-酮

2-methyl-N,N-bis(trimethylsilyl)prop-2-en-1-amine