Aminosulfonic acid derivatives and processes for their preparation
US5342977A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1992 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Dec 17, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K5/0606
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Salts of aminosulfonic acid derivatives of formula I ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are each independently of the others an aliphatic hydrocarbon radical having from 7 to 21 carbon atoms, PA1 n is 0 or 1, PA1 As is the amidically bonded residue of a (D)- or (L)-amino acid or of a (D)- or (L)-amino acid derivative from the group consisting of Gly, Ala, Ser, Thr, Asp, Asp(R.sup.5), Glu, Glu(R.sup.5), Gla, Gla(R.sup.5) and Gla(R.sup.5).sub.2, and PA1 R.sup.4 and R.sup.5 are each independently of the other the amidically bonded radical of an unsubstituted or carboxy-substituted .omega.-amino-C.sub.2 -C.sub.3 alkanesulfonic acid, are described. Those salts have an immunostimulating action and can be used as medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.