N3-heteroaryl substituted triazoles and N5-heteroaryl substituted triazoles useful as axl inhibitors

A compound of formula (Ia):

• wherein:
• R1, R4 and R5 are each hydrogen;
• R2 is a heteroaryl selected from the group consisting of benzoxazolyl, isoquinolinyl, pyrimidinyl, 2,3-dihydrobenzo[b][1,4]dioxinyl, 4,5-dihydro-1H-benzo[b]azepin-2(3H)-onyl, 6,7,8,9-tetrahydro-5H-pyrido[3,2-d]azepinyl, 5,6,7,8-tetrahydro-1,6-naphthyridinyl, 5,6,7,8-tetrahydroquinolinyl, 1H-pyrrolo[2,3-b]pyridinyl, benzo[b]thiophenyl, 7′,8′-dihydro-5′H-spiro[[1,3]dioxolane-2,6′-quinoline]-3′-yl, 4b,5,6,7,7a,8-hexahydropentaleno[2,1-b]pyridinyl, and 6,7,8,9-tetrahydrocyclohepta[b]pyridinyl, each optionally substituted by one or more substituents selected from the group consisting of oxo, thioxo, cyano, nitro, halo, haloalkyl, alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heterocyclylalkenyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, optionally substituted heteroarylalkenyl, —R9—OR8, —R9—O—R10—OR8, —R9—O—R10—O—R10—OR8, —R9—O—R10—CN, —R9—O—R10—C(O)OR8, —R9—O—R10—C(O)N(R6)R7, —R9—O—R10—S(O)pR8 (where p is 0, 1 or 2), —R9—O—R10—N(R6)R7, —R9—O—R10—C(NR11)N(R11)H, —R9—OC(O)—R8, —R9—C(O)R8, —R9—C(O)OR8, —R9—C(O)N(R6)R7, —R9—C(O)—R10—N(R6)R7, —R9—N(R6)R7, —R9—N(R6)—R10—N(R6)R7, —R9—N(R6)C(O)OR8, —R9—N(R6)C(O)—R10—N(R6)R7, —R9—N(R6)C(O)R8, —R9—N(R6)S(O)tR8 (where t is 1 or 2), —R9—S(O)tOR8 (where t is 1 or 2), —R9—S(O)pR8 (where p is 0, 1 or 2), and —R9—S(O)tN(R6)R7 (where t is 1 or 2);
• or R2 is pyridin substituted by one or more substituents selected from the group consisting of alkyl, haloalkyl, halo, cyano, nitro optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heterocyclylalkenyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, optionally substituted heteroarylalkenyl, —R9—OR8, —R9—O—R10—OR8, —R9—O—R10—O—R10—OR8, —R9—O—R10—CN, R9—O—R10—C(O)OR8, —R9—O—R10—C(O)N(R6)R7, —R9—O—R10—S(O)pR8 (where p is 0, 1 or 2), —R9—O—R10—N(R6)R7, —R9—O—R10—C(NR11)N(R11)H, —R9—OC(O)—R8, —R9—C(O)R8, —R9—C(O)OR8, —R9—C(O)N(R6)R7, —R9—C(O)—R10—N(R6)R7, —R9—N(R6)R7, —R9—N(R6)—R10—N(R6)R7, —R9—N(R6)C(O)OR8, —R9—N(R6)C(O)—R10—N(R6)R7, —R9—N(R6)C(O)R8, —R9—N(R6)S(O)tR8 (where t is 1 or 2), —R9—S(O)tOR8 (where t is 1 or 2), —R9—S(O)pR8 (where p is 0, 1 or 2), and —R9—S(O)tN(R6)R7 (where t is 1 or 2);
• R3 is selected from the group consisting of pyrimidinyl, isoquinolinyl, quinazolinyl, phenanthridinyl, thieno[3,2-d]pyrimidinyl, thieno[3,2-d]pyridazinyl, 6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidinyl, and furo[3,2-c]pyridinyl, each optionally substituted by one or more substitutents selected from the group consisting of alkyl, alkenyl, halo, haloalkyl, haloalkenyl, oxo, thioxo, cyano, nitro, optionally substituted aryl, optionally substituted aralkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, —R13—OR12, —R13—OC(O)—R12, —R13—O—R14—N(R12)2, —R13—N(R12)2, —R13—C(O)R12, —R13—C(O)OR12, —R13—C(O)N(R12)2, —R13—C(O)N(R12)—R14—N(R12)R13, —R13—C(O)N(R12)—R14—OR12, —R13—N(R12) C(O)OR12, —R13—N(R12)C(O)R12, —R13—N(R12)S(O)tR12 (where t is 1 or 2), —R13—S(O)tOR12 (where t is 1 or 2), —R13—S(O)pR12 (where p is 0, 1 or 2), and —R13—S(O)tN(R12)2 (where t is 1 or 2);
• each R6 and R7 is independently selected from the group consisting of hydrogen, alkyl, haloalkyl, hydroxyalkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroaryl, optionally substituted heteroarylalkyl, —R10—OR8, —R10—CN, R10NO2, —R10—N(R8)2, R10—C(O)OR8 and —R10—C(O)N(R8)2, or any R6 and R7, together with the common nitrogen to which they are both attached, form an optionally substituted N-heteroaryl or an optionally substituted N-heterocyclyl;
• each R8 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, haloalkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroaryl, and optionally substituted heteroarylalkyl;
• each R9 is independently selected from the group consisting of a direct bond and an optionally substituted straight or branched alkylene chain;
• each R10 is independently an optionally substituted straight or branched alkylene chain;
• each R11 is hydrogen, alkyl, cyano, nitro or —OR8;
• each R12 is independently selected from the group consisting of hydrogen, alkyl, haloalkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted aryl, optionally substituted aralkyl, optionally substituted heterocyclyl, optionally substituted heterocyclylalkyl, optionally substituted heteroaryl and optionally substituted heteroarylalkyl, or two R12's, together with the common nitrogen to which they are both attached, may optionally form an optionally substituted N-heterocyclyl or an optionally substituted N-heteroaryl;
• each R13 is independently selected from the group consisting of a direct bond and an optionally substituted straight or branched alkylene chain;
• and
• each R14 is independently an optionally substituted straight or branched alkylene chain;
• as an isolated stereoisomer or mixture thereof, or a pharmaceutically acceptable salt thereof.