Process for preparing a 3-formylcephem derivative

Details Process for preparing a 3-formylcephem derivative Process for preparing a 3-formylcephem derivative

1991-03-07

1992-08-25

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540215, 540230, C07D50104

Patent

active

051420406

ABSTRACT:
The present invention provides a process for preparing a 3-formylcephem derivative represented by the formula (2) ##STR1## which comprises oxidizing in the presence of oxygen a 3-halomethylcephem derivative represented by the formula (1) ##STR2## wherein R.sup.1 is amino group or protected amino group, R.sup.2 is hydrogen atom or a carboxylic acid protective group, X is halogen atom.

REFERENCES:
patent: 4269977 (1981-05-01), Peter et al.
Helvetica Chimica Acta, vol. 57, Fasc. 7 (1974)-Nr. 219 (German).
Japan Medical Chemistry, 10(5), 1967.
Chem. Pharm. Bull. 28(4) 1339-1341 (1980), "A New Synthetic Method of 3-Formylcephalosporins".
Chemical Abstracts vol. 115(21):231989(p) (1991).
Chemical Abstracts vol. 114(5) 42319p (1991).
Chemical Abstracts vol. 105(11) 97207v (1986).

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