Pharmaceutical compounds

US7186753B1 · kind B1 · utility

Assignee

• NICOX S.A. · FR

Inventor

• Piero Del Soldato · Monza, IT

Key dates

• Filing date: Jul 27, 2000
• Grant date: Mar 6, 2007
• Expiry date: Apr 9, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2602/08
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Compounds or their salts of general formula (I): A—B—N(O)s wherein: s is an integer equal to 1 or 2; A=R—T1—, wherein R is the drug radical and T1=(CO)t or (X)t′, wherein X=O, S, NR1c, R1c is H or a linear or branched alkyl or a free valence, t and t′ are integers and equal to zero or 1, with the proviso that t=1 when t′=0; t=0 when t′=1; B=—TB—X2—O— wherein TB=(CO) when t=0, TB=X when t′=0, X being as above defined; X2 is equal to R1B—X—R2B radical wherein X is as above defined, R1B and R2B, equal to or different from each other, are linear or branched C1–C6 alkylenes, or X2 is a radical wherein two alkylene chains C1–C4 are linked to nonadjacent positions of a central ring having 4 or 6 atoms, said ring being an unsaturated cycloaliphatic ring, or a saturated or aromatic heterocylic ring, containing one or two heteroatoms, equal or different, selected from O, S, N; wherein the unsaturated cycloaliphatic ring does not have aromatic character according to Huckel's rule.