3619-01-0
(S)-(+)-N-乙酰基-丝氨酸甲酯
→
87422-43-3
4-ethyl-5-methoxy-2-methyl-1,3-oxazole
87419-52-1
5-ethyl-4-hydroxy-7-methyl-1,1-dioxothieno[2,3-c]pyridin-3-one