| 摘要 |
NEW MATERIAL:7-[ (Z)-2-( 5-Amino-1,2,4-thiadiazol-3-yl )-2-methoxyiminoacetam ido]-3-(4-carbamoyl-1-quinuclidinio)methyl-3-cephem-4-carboxylate crystal having X-ray diffraction pattern including lattice spacings d of 10.6, 5.3 and 5.1(Angstrom ) or X-ray diffraction pattern including lattice spacings of 15.4, 5.0 and 4.6(Angstrom ). USE:An antibacterial agent having excellent stability. PREPARATION:7beta-[ (Z)-2-( 5-Amino-1,2,4-thiadiazol-3-yl )-2-methoxyiminoacetam ido]-3-(4-carbamoyl-1-quinuclidinio)methyl-3-cephem-4-carboxylate is crystallized from a mixed solvent of water and methanol and then dried until water content becomes 6-30% (W/W). |
