GPR 119 agonists

A compound of formula (I),

• its tautomeric form, its stereoisomer, and pharmaceutically acceptable salt thereof
• wherein
• R1 represents H or an optionally substituted group selected from a member of the group consisting of linear or branched (C1-C6)-alkyl, haloalkyl, (C1-C6)alkenyl, cycloalkyl, cycloalkylalkyl, heterocyclyl, heterocyclylalkyl, aryl, aralkyl, heteroaryl, heteroarylalkyl, alkylsulfonyl, and arylsulfonyl groups, or a group represented by (CH2)mCO2R4, (CH2)mCOR4 or (CH2)mCONH2 wherein each R4 independently represents H or a group selected from a member of the group consisting of linear or branched (C1-C6)alkyl, cycloalkyl, aryl, heterocyclyl and heteroaryl;
• and m is an integer of 0 to 3;
• R2 represents H, cyano, nitro, formyl, linear or branched (C1-C6) alkyl, or (C1-C6) alkoxyl;
• R3 represents an optionally substituted group selected from a member of the group consisting of linear or branched (C1-C6)alkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, and heteroaralkyl or a group represented by C(O)OR5, C(O)R5, and SO2R5 wherein each R5 independently represents H or an optionally substituted group selected from a member of the group consisting of linear or branched (C1-C6)alkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, heterocyclyl, hererocyclylalkyl, heteroaryl, and heteroaralkyl groups;
• n represents an integer from 0 to 3;
• and
• “A” represents
• wherein p represents an integer from 1 to 3;
• and X represents O or S.