D-.alpha.-(4-hydroxypyridine-3-carbonamido)-p-hydroxyphenylacetamidopenic illanic acid
US3945995A · kind A · utility
15Cited by
3References
1Claims
0Family size
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Key dates
| Filing date | Apr 5, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Apr 5, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D499/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Penicillins of the formula: ##SPC1## Wherein R is an unsubstituted phenyl group or a substituted phenyl group having one or more hydroxyl groups or a cyclohexadienyl group and A represents a monocyclic or polycyclic nitrogen-containing heterocyclic aromatic ring, which are useful as antimicrobial agents having a broad antimicrobial spectrum against gram-positive and gram-negative bacteria including Pseudomonas and can be produced advantageously from the phenacyl ester of 6-aminopenicillanic acid through a series of steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.