Amino acid derivatives, processes for the preparation thereof and pharmaceutical composition comprising the same
US5223489A · kind A · utility
5Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1992 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Jan 30, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/205
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula: ##STR1## wherein R.sup.1 is lower alkyl optionally substituted aryl; or amino optionally substituted; and PA1 R.sup.2 is hydrogen or lower alkyl; or PA1 R.sup.1 and R.sup.2 are taken together with the attached nitrogen atom to form a heterocyclic group optionally substituted; PA1 R.sup.3 is hydrogen or lower alkyl; and PA1 R.sup.4 is lower alkyl; and its pharmaceutically acceptable salt, processes for the preparation thereof and pharmaceutical composition comprising the same
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.