| abstract |
The invention relates to a compound of ** formula **, or its pharmaceutically acceptable salts, wherein: R1 is (C1-6 alkyl, R2 is (C1-6) alkyl, or R1 and R2 taken together with an atom carbon to which they are attached form a cycle selected from (C5-7) cycloalkyl, 4-tetrahydropyranyl and 4-piperidinyl; R3 is hydrogen or (C1-6) alkyl, and Y is substituting one of the carbon atoms of the phenyl cycle capable of carrying an additional bond preferably of two substituents (or better a substituent or better still a substituent in position 4) in the phenyl cycle, independently selected from hydrogen, fluoro, chloro, trifluoromethyl, (C1-6) alkoxy, trifluoromethoxy, difluoromethoxy and C1-6) alkyl. |