(S)-3-Phenyl-2-[(pyrazine-2-carbonyl)-amino]-propionic acid

n-pyrazinylcarbonyl-l-phenylalanine ; n-(2-吡嗪基羰基)-l-苯丙氨酸 ; bortezomib acid impurity ; n-(2-pyrazinylcarbonyl)- ; bortezomib impurity b ; bortezomib int b ; bortezomib intermediate 2 ; l-phenylalanine,n-(2-pyrazinylcarbonyl)- ; 硼替佐米中间体 ; (s)-3-phenyl-2-[(pyrazin-2-ylcarbonyl)amino] propanoic acid ; (s)-3-phenyl-2-(pyrazine-2-carboxamido)propanoic acid ; n-(2-pyrazinylcarbonyl)-l-phenylalanine ; l-phenylalanine, n-(2-pyrazinylcarbonyl)-