Fig. 2From: Penicillin acylase-catalyzed synthesis of N-bromoacetyl-7-aminocephalosporanic acid, the key intermediate for the production of cefathiamidineEffect of PA sources on the synthesis of N-bromoacetyl-7-ACA. Reaction conditions: 40 mmol/L 7-ACA, 120 mmol/L methyl bromoacetate, 3 U/mL enzyme, 5 mL phosphate buffer (100 mmol/L, pH 7.5), 200 r/min, 20 °CBack to article page