C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
167/211, 260/246
C07D 471/04 (2006.01) A61K 31/435 (2006.01) A61K 31/44 (2006.01) A61K 31/535 (2006.01)
Patent
CA 1329597
- 1 - Abstract A pharmaceutical composition comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof: Image (I) wherein: R1 is hydrogen, C1-6 alkyl, C1-6 alkoxy or halogen; R2 and R3 are both hydrogen or together represent a bond; R4 is hydrogen and R5 is hydrogen or R4 and R5 together represent an oxo group; R6 is phenyl C1-7 alkanoyl in which the phenyl moiety is optionally substituted by one or two of halogen, nitro, meta- or para-methoxy, methyl or NR8R9 wherein R8 and R9 are independently hydrogen or C1-6 alkyl or R8 and R9 together are C2-6 polymethylene, or 3,4-disubstituted by methylenedioxy or ethylenedioxy; or C1-7 alkanoyl substituted by NR10R11 where R10 and R11 are independently hydrogen or C1-4 alkyl or together are C3-7 polymethylene optionally containing a further hetereoatom which is oxygen, sulphur or nitrogen substituted by R12 where R12 is hydrogen, C1-4 alkyl or benzyl, and optionally substituted by one or - 2 - two C1-4 alkyl, C2-5 alkanoyl, C1-4 alkoxycarbonyl, aminocarbonyl optionally substitiuted by one or two C1-6 alkyl groups or by a benzyl group, cyano, pheny1 or benzyl and wherein any phenyl or benzyl group is optionally substituted in the phenyl ring by one or two halo, CF3, C1-4 alkyl, C1-4 alkoxy, cyano or nitro groups; and R7 is hydrogen or C1-4 alkyl; and a pharmacuetically acceptable carrier. These pharmacuetical compositions are useful for the treatment of cerebrovascular and neuronal degenerative disorders associated with learning memory and cognitive disfunctions.
554891
Hoeltje Dagmar
Jozic Ljerka
Thielke Dietrich
Beecham-Wuelfing G.m.b.h. & Co Kg
Borden Ladner Gervais Llp
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