3-ethyl-dihydro-4-[(1-methyl-1H-2-mercaptoimidazol-5-yl)methyl]-2(3H)-furanone

4-toluene-sulfonylmethyl isocyanide

(4-乙基-5-氧代四氢呋喃-3-基)-乙醛

甲胺

α-乙酰基-γ-丁内酯