Phosphorus-containing cyclic nitroxide free radicals

US5006663A · kind A · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Yves Berchadsky · Marseille, FR
• Nelly Kernevez · Grenoble, FR
• Francois Le Moigne · Marseille, FR
• Anne-Gaëlle MERCIER · Marseille, FR
• Liliane Secourgeon · Yssingeaux, FR
• Paul Tordo · Marseille, FR

Key dates

• Filing date: Nov 8, 1989
• Grant date: Apr 9, 1991
• Expiry date: Nov 8, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/6533
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A nitroxide radical of the formula (I) or (II): ##STR1## in which R.sub.1 and R.sub.2 are independently chosen from among the optionally deuterated alkyl, alkoxyl, dialkylaminyl and phenyl radicals, H, D or Cl; R.sub.3, R.sub.8 and R.sub.9 are independently chosen from among the optionally deuterated alkyl, alkoxyl and phenyl radicals; R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are independently chosen from among the optionally deuterated alkyl, alkoxyl, dialkylaminyl and phenyl radicals, COOH, OH, OD, H, D, a halogen, COOR (in which R is an alkyl radical); R.sub.10 and R.sub.11 are independently chosen from among optionally deuterated alkyl, alkoxyl, dialkylaminyl and phenyl radicals, COOH, OH, OD, H, D, a halogen, COOR (in which R is an alkyl radical) or represent an oxygen atom linked with the cycle of the radical by a double bond is described.