反应详情

温度

0 °C

To 25 ml of N,N-dimethylformamide were added 1.3 g (3 mmol) of (Z)-2-(2-tritylaminothiazol-4-yl)-2-methoxyiminoacetic acid and 1.35 (3 mmol) of diphenylmethyl 7 β-amino-3-chloromethyl-ceph-3-em-4-carboxylate hydrochloride. The mixture was cooled to 0° C., and 0.53 g (3.9 mmol) of N-hydroxybenzotriazole hydrate and then 0.80 g (3.9 mmol) of N,N-dicyclohexylcarbodiimide were added thereto.