Heterocyclic-substituted oxoalkanoic acid derivatives
US4386092A · kind A · utility
10Cited by
1References
10Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 28, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Aug 28, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A heterocyclic-substituted oxoalkanoic acid derivative having immunomodulatory activities of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, phenyl which may be substituted by at least one substituent selected from halogen, lower alkyl, lower alkoxy, mono- or di-lower alkyl amino-substituted lower alkoxy, lower alkylthio, lower alkylsulfinyl, amino, nitro and cyano at any position(s) on the nucleus, thienyl or furyl, each of R.sup.2 and R.sup.3 is hydrogen or lower alkyl, A is lower alkylene, X is sulfur or vinylene, Y is nitrogen or methine which may be substituted by lower alkyl, Z is carbonyl or direct bond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.