N-[4-[2-(2-Amino-4,7-dihydro-4-oxo-3H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-L-glutamic acid 1,1'-(1,2-ethanediyl) 5,5'-dimethyl ester 4-methylbenzenesulfonate
N-[4-[2-(2-氨基-4,7-二氢-4-氧代-3H-吡咯并[2,3-D]嘧啶-5-基)乙基]苯甲酰]-L-谷氨酸 1,1'-(1,2-乙基二酯) 5,5'-二甲酯对甲苯磺酸盐