Peptide derivatives

US4439425A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Lajos Tarcsay · Weil am Rhein, DE
• Bruno Kamber · Arlesheim, CH
• Jaroslav Stanek · Arlesheim, CH
• Gerhard Baschang · Bettingen, CH
• Albert Hartmann · Grenzach, DE

Key dates

• Filing date: Jun 7, 1982
• Grant date: Mar 27, 1984
• Expiry date: Jun 7, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K38/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The present invention relates to new lipopeptides and in particular to compounds of either of the formulae ##STR1## wherein R.sub.1 and R.sub.2 each represent a saturated or unsaturated aliphatic or mixed aliphatic-cycloaliphatic hydrocarbon radical which has 11-21 C atoms and which is also optionally substituted by oxygen functions, R.sub.3 represents hydrogen or the radical R.sub.1 --CO--O--CH.sub.2 --, where R.sub.1 has the same meaning, R.sub.1 ' is a saturated or unsaturated aliphatic hydrocarbon radical of at least 9 C atoms, which is optionally substituted at one of the C atoms non adjacent to the sulfur atom by a free hydroxyl group or a hydroxyl group esterified with a monobasic carboxylic acid and which is optionally interrupted in the C atoms chain by one or more oxygen atoms, and which hydrocarbon is optionally substituted by a maximum of 2 cycloaliphatic hydrocarbon radicals having 5-8 ring C atoms, or R.sub.1 ' is the radical --CO--R.sub.1 ", wherein R.sub.1 " represents a saturated or unsaturated aliphatic or mixed aliphatic-cycloaliphatic hydrocarbon radical of 11-21 C-atoms and which is optionally interrupted in the C atoms chain by oxygen atoms, and X represents a…