Process for the preparation of crystals of 7 - / (Z) -2- (5-amino-1,2,4-thiadiazol-3-yl) -2-methoxy-iminoacetamido / -3- (1-imidazo-1) 2-b / -pyridazinium) methyl-3-kefem-4-carboxylate hydrochloride

摘要

Crystals of 7 beta -[(Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-(1- imidazo[ 1,2-b]-pyridazinium)methyl-3-cephem-4-carboxylate hydrochloride or a solvate thereof, which are stable and improved in solubility in water, are usable for an excellent antibacterial agent.