Cephem compound, its production and its use for producing cephem

Details Cephem compound, its production and its use for producing cephem Cephem compound, its production and its use for producing cephem

1994-07-12

1998-01-13

Shah, Mukund J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D50146

Patent

active

057081654

ABSTRACT:
##STR1## wherein R represents hydrogen, a protective group for an amino group, or the group shown by formula (II): ##STR2## in which R.sup.3 is a protective group for an amino group, R.sup.4 is a protective group for a hydroxyl group, and W is --CH.dbd. or --N.dbd.; R.sup.2 represents a protective group for a carboxyl group; and X represents hydrogen or chlorine. The compound is useful as an intermediate for producing cephem antibiotics and is prepared by isomerizing the solvent in the presence of an aromatic thiol. The compound of formula (I) wherein X is chlorine can be converted into a tertiary amine.

REFERENCES:
patent: 4751295 (1988-06-01), Oka et al.
M. Schwarz et al., "Insect Sex Pheromones. Stereospecific . . . Thiophenol-Mediated Olefin Inversion", J. Org. Chem., vol. 51, No. 2, 1986, pp. 260-263.

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