Pyridine derivatives

A compound of formula (I)

• wherein
• R1 is halophenyl, cycloalkylalkoxy, alkyloxetanylalkoxy, alkoxycarbonylpyrrolidinylalkoxy, alkoxycarbonylpyrrolidinyloxy, alkyl sulfonylphenylalkoxy, haloalkoxy, (alkyl)(halo)cycloalkylalkoxy, benzotriazolyloxy, halopyridinylalkoxy or halopyridinyl;
• R2 is halogen, cycloalkyl, haloalkyl, cycloalkylalkoxy, 2-oxa-6-azaspiro[3.3]heptyl or phenylalkoxy;
• R3 is —C(O)—NH—C(R4R5)m(CH2)n—R6 or alkyloxadiazolyl;
• R4 and R5 are independently selected from hydrogen, alkyl, hydroxyalkyl, haloalkyl, azetidinyl, cycloalkylalkyl and cycloalkyl;
• R6 is hydroxyl, hydroxycycloalkyl, alkoxycarbonyl, alkoxycycloalkyl, aminocarbonyl, phenyl, alkyl-1,2,4-oxadiazolyl, alkylaminocarbonyl, haloalkyl or alkyl-1,3,4-oxadiazolyl;
• m is 0 or 1;
• and
• n is 0 or 1;
• or a pharmaceutically acceptable salt or ester thereof.