Sulfonyl benzimidazole derivatives

A compound of the formula (I):

• or a pharmaceutically acceptable salt thereof, wherein:
• A is a bond;
• B is CH;
• R1 is a C1-C2 alkyl group substituted with one substituent selected from the group consisting of, a hydroxy group, a trifluoromethoxy group, a C1-C4 alkoxy group, an amino group, a C1-C4 alkylamino group, a di(C1-C4 alkyl)amino group, a cycloalkyl group, an alkyl-substituted cycloalkyl group, a hydroxy-substituted cycloalkyl group, a heterocyclyl group, an alkyl-substituted heterocyclyl group and a hydroxy-substituted heterocyclyl group;
• wherein said unsubstituted or substituted heterocyclyl group is selected from the group consisting of pyrrolidinyl, tetrahydropyranyl, and tetrahydrofuranyl;
• R2 is an alkyl-substituted C3-C6 cycloalkyl group, a branched C4-C8 alkyl group, an alkoxy-substituted branched C4-C8 alkyl group, or a methyl group substituted with one substituent select from the group consisting of a C3-C5 cycloalkyl group, and an alkylsubstituted C3-C5 cycloalkyl group;
• and
• R3 is a phenyl group, a C3-C5 cycloalkyl group or a C1-C4 alkyl group, said phenyl group and said alkyl group being unsubstituted or substituted with 1 to 3 substituents independently selected from the group consisting of a halogen atom, a C1-C4 alkoxy group and a di(C1-C4 alkyl)amino group.