1-(2,6-dihydroxy-4-methoxy-3-methylphenyl)ethanone

5-氧代-己酸甲酯

methyl 5-oxo-6-(3-oxocyclohex-1-en-1-yl)hexanoate

1-phenyl-2-trimethylsilylethanone

benzyl (2S)-2-ethenylpyrrolidine-1-carboxylate