Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1977-06-03
1978-08-01
Rizzo, Nicholas S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
424246, C07D50136
Patent
active
041044703
ABSTRACT:
The cephalosporin antibiotic, cefazolin sodium, is provided in the monohydrate crystalline form substantially free of other crystalline forms via addition of a concentrated solution of cefazolin acid in a water-miscible organic solvent such as DMAC to a sodium cation donor solution, e.g., sodium acetate in ethanol, wherein said sodium cation donor solution contains water in an amount sufficient to constitute 3-7 percent by volume of the mixed solutions.
REFERENCES:
patent: 3516997 (1970-06-01), Takano et al.
Kariyone et al., The Jour. of Antibiotics, vol. XXIII [3], pp. 131-135, (Mar. 1970).
Cise Michael D.
Osborne Harold E.
Eli Lilly and Company
Rizzo Nicholas S.
Scanlon William B.
Whale Arthur R.
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