MISHIO, S.(1987). Studies on Ampicillin and Amoxicillin Derivatives. III. Synthesis of 6-[2-[(Pyrido[2, 3-d] pyrimidin-6-yl) methylamino]-2-phenylacetamido] penicillanic Acid Derivatives, 6-[2-(4-Pyrimidinylamino)-2-phenylacetamido] penicillanic Acid Derivatives and-cephalosporanic Acid Derivatives. YAKUGAKU ZASSHI, 107(8), 607-615. doi:10.1248/yakushi1947.107.8_607

MISHIO, SHINSAKU. "Studies On Ampicillin and Amoxicillin Derivatives. III. Synthesis of 6-[2-[(Pyrido[2, 3-d] Pyrimidin-6-yl) Methylamino]-2-phenylacetamido] Penicillanic Acid Derivatives, 6-[2-(4-Pyrimidinylamino)-2-phenylacetamido] Penicillanic Acid Derivatives And-cephalosporanic Acid Derivatives". YAKUGAKU ZASSHI, 107.8 ( 1987 ): 607-615.