Patent ID: 7378413

Claim:
A method for the treatment of a disease selected from the group consisting of Alzheimer's disease, Parkinson's disease, taupathies, non-insulin dependent diabetes, obesity, manic depressive illness and schizophrenia, which comprises administering to a patient in need of such treatment a therapeutically effective amount of a compound of formula (I) wherein: R1 represents a hydrogen atom or a C 1-6 alkyl group; R2 represents a C 1-6 alkyl group which may be substituted, a C 2-6 alkenyl group which may be substituted, a C 3-6 alkynyl group which may be substituted, a C 3-6 cycloalkyl group which may be substituted, or a C 6-10 aryl group which may be substituted; or R1 and R2 form together a C 2-6 alkylene group which may be substituted; or R1 and R2 form together a chain of formula —(CH 2 ) 2 —X—(CH 2 ) 2 — or —(CH 2 ) 2 —X—(CH 2 ) 3 — where X represents a oxygen atom, a sulfur atom, or a nitrogen atom which may be substituted; R3 represents a 2,3 or 4-pyridyl group optionally substituted by a C 1-4 alkyl group, C 1-4 alkoxy group or a halogen atom; and R4 represents a C 1-6 alkyl group optionally substituted by a C 6, 10 aryl group which may be substituted; or a salt thereof.