Process for the preparation of azacycloalkylakanoyl pseudotetrapeptides
US6180759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2000 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
This invention is directed to a process for preparing a pseudotetrapeptide of formula I ##STR1## or a salt or prodrug thereof wherein ##STR2## is optionally nitrogen protected azaheterocyclyl; ##STR3## is a single or double bond; q is 1-5; B is alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, aralkyl, alkylaryl, or alkylaralkyl; Q.sub.2 is H or a carboxylic acid protecting group; J is --H, alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, substituted aryl, aralkyl, substituted aralkyl; L is OR.sup.1, or NR.sup.1 R.sup.2, where R.sup.1 and R.sup.2 are independently --H, alkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, alkylcycloalkylalkyl, aryl, aralkyl, alkylaryl or alkylaralkyl; and p is 1 or 2 which comprises the coupling of two dipeptides or psuedopeptides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.