1-Acyloxyalkyl esters of cephalosporin

Details 1-Acyloxyalkyl esters of cephalosporin 1-Acyloxyalkyl esters of cephalosporin

1986-07-18

1989-01-10

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

540227, A61K 31545, C07D50136

Patent

active

047973951

ABSTRACT:
A compound of the formula ##STR1## wherein (1) R.sub.1 is a lower alkyl group of 2 to 6 carbon atoms or a cycloalkyl group of 5 to 7 carbon atoms and R.sub.2 is a cycloalkyl group of 5 to 7 carbon atoms or a lower alkyl group of 1 to 3 carbon atoms which is substituted by a cycloalkyl group of 5 to 7 carbon atoms or by a phenyl group, or (2) R.sub.1 is a cycloalkyl group of 5 to 7 carbon atoms and R.sub.2 is a lower alkyl group of 1 to 5 carbon atoms, or a pharmaceutically acceptable salt thereof, processes for preparing the same and a pharmaceutical composition thereof are provided. The compound can orally be applied as antibiotics having improved bioavailability.

REFERENCES:
patent: 4497809 (1985-02-01), Yoshimura et al.
patent: 4593115 (1986-01-01), Miyake et al.
patent: 4616008 (1986-10-01), Hirai et al.
patent: 4729992 (1988-03-01), Nishimura et al.

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