Process for preparing 6-aminopenicillanic acid, 7-aminocephalosp

Details Process for preparing 6-aminopenicillanic acid, 7-aminocephalosp Process for preparing 6-aminopenicillanic acid, 7-aminocephalosp

1975-07-17

1977-05-03

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602391, 2603067C, C07D50104, C07D49908

Patent

active

040214265

ABSTRACT:
A process for preparing 6-APA and 7-ACA and derivatives therefore is disclosed wherein a penicillin or cephalosporin substrate is reacted with a molar excess of an oxalyl halide of the formula halCOCOhal whereby the COOM group of the substrate, wherein M represents hydrogen, metal or ammonium cations, is transformed into the group COOCOCOhal.

REFERENCES:
flynn, "Cephalosporins & Penicillins," pp. 56-73, (1972).
Murphy et al., J. Org. Chem., vol. 35, pp. 2429-2430, (1970).

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