Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1976-03-24
1981-05-26
Rizzo, Nicholas S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
544 22, 544 23, 424246, C07D50104
Patent
active
042699770
ABSTRACT:
The invention concerns the decarbonylation of the formyl group in 7-amino-3-formyl-ceph-2-em-4-carboxylic acid compounds and 7-amino-3-formyl-ceph-3-em-4-carboxylic acid compounds by treatment with a platinum metal complex capable of taking up carbon monoxide. Also included are the 7-amino-ceph-2-em-4-carboxylic acid compounds and the 1-oxides of 7-amino-ceph-3-em-4-carboxylic acid compounds; these compounds are used as intermediates.
REFERENCES:
patent: 3351596 (1967-11-01), Chamberlin
patent: 3532694 (1970-10-01), Somerfield
patent: 3932393 (1976-01-01), Chavvette
Urry et al., J. Org. Chem. vol. 29, 1663 (1964).
Nilt et al., J. Org. Chem. vol. 33, 923 (1968).
Bickel Hans
Peter Heinrich
Almaula Prabodh I.
Ciba-Geigy Corporation
Rizzo Nicholas S.
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