Amino acid derivatives and processes for preparation thereof
US4743614A · kind A · utility
33Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1986 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Mar 4, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12R2001/645
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel compounds of the following formula have restorative pharmacological activities in immuno-deficient hosts, ##STR1## wherein R.sup.1 is amino or a protected amino group, PA1 R.sup.2 is hydrogen, carboxy or a protected carboxy group, PA1 R.sup.3 is hydrogen, carboxy or a protected carboxy group, PA1 R.sup.4 is lower alkyl, amino(lower)alkyl, protected amino(lower)alkyl, carbamoyl(lower)alkyl or protected carbamoyl(lower)alkyl, PA1 R.sup.5 is hydrogen or lower alkyl, and PA1 R.sup.6 is hydrogen, hydroxyphenyl(lower)alkyl, imidazolyl(lower)alkyl or indolyl(lower)alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.