Ethyl 2-chloro-5-nitronicotinate

胸腺嘧啶-1-乙酸

methyl 2-[7-(2-methoxy-2-oxoethoxy)-9-oxofluoren-2-yl]oxyacetate

methyl 2-[4-(hydroxymethyl)phenoxy]acetate

(1,3,4,9-四氢-b-咔啉-2-基)-乙酸甲酯