Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Parasitic organism or component thereof or substance...
Patent
1975-10-20
1978-01-10
Schwartz, Gerald A.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Parasitic organism or component thereof or substance...
2602391, A61K 3143, C07D49968
Patent
active
040679861
ABSTRACT:
Penicillanic acid derivatives of the formula ##STR1## wherein E is selected from the group consisting of hydrogen, a salt forming cation, and an ester forming residue which is known to improve the absorption characteristics of penicillanic compounds after oral administration to humans or animals, and Y is a group of the formula ##STR2## wherein Z.sub.1 and Z.sub.2 are individually selected from the group consisting of lower alkoxy, optionally substituted phenoxy, optionally substituted benzyl and benzyloxy group, optionally substituted lower alkyl, optionally substituted phenyl, hydroxy and -OM wherein M represents a salt forming cation, and hydrates of the said salts having antibacterial properties and their preparation and novel intermediates.
REFERENCES:
patent: 3558601 (1971-01-01), Ekstrom et al.
patent: 3674776 (1972-07-01), Long et al.
patent: 3923787 (1975-12-01), Clayton et al.
patent: 3935189 (1976-01-01), Fenes et al.
patent: 3939149 (1976-02-01), Konig et al.
patent: 3945994 (1976-03-01), Bruynes et al.
Bruynes Cornelis Adrianus
VAN DER Drift Johannes Karel
Gist-Brocades N.V.
Schwartz Gerald A.
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