N-[4-[2-(2-氨基-4,7-二氢-4-氧代-1H-吡咯并[2,3-d]嘧啶-5-基)乙基]苯甲酰]-L-谷氨酸二乙酯对甲苯磺酸盐

methyl 4-(4-methylsulfonyloxybutyl)benzoate

methyl 4-(5-chloro-4-oxopentyl)benzoate

4-[4-(2-amino-6-methyl-4-oxo-1H-pyrimidin-5-yl)butyl]benzoic acid

methyl 4-(4-chloro-4-oxobutyl)benzoate