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JANUS KINASE INHIBITORS FOR TREATMENT OF DRY EYE AND OTHER EYE RELATED DISEASES

  • US 20100113416A1
  • Filed: 10/01/2009
  • Published: 05/06/2010
  • Est. Priority Date: 10/02/2008
  • Status: Abandoned Application
First Claim
Patent Images

1. A method of treating a dry eye disorder in a patient in need thereof, comprising administering to said patient a therapeutically effective amount of an agent selected from:

  • (a) compounds of Formula I;

    wherein;

    A1 and A2 are independently selected from C and N;

    T, U, and V are independently selected from O, S, N, CR5, and NR6;

    wherein the 5-membered ring formed by A1, A2, U, T, and V is aromatic;

    X is N or CR4;

    Y is C1-8 alkylene, C2-8 alkenylene, C2-8 alkynylene, (CR11R12)p

    (C3-10 cycloalkylene)-(CR11R12)q, (CR11R12)p-(arylene)-(CR11R12)q, (CR11R12)p-(C1-10 heterocycloalkylene)-(CR11R12)q, (CR11R12)p-(heteroarylene)-(CR11R12)q, (CR11R12)pO(CR11R12)q, (CR11R12)pS(CR11R12)q, (CR11R12)pC(O)(CR11R12)q, (CR11R12)pC(O)NRc(CR11R12)q, (CR11R12)pC(O)O(CR11R12)q, (CR11R12)pOC(O)(CR11R12)q, (CR11R12)pOC(O)NRc(CR11R12)q, (CR11R12)pNRc(CR11R12)q, (CR11R12)pNRcC(O)NRd(CR11R12)q, (CR11R12)pS(O)(CR11R12)q, (C11R12)pS(O)NRc(CR11R12)q, (CR11R12)pS(O)2(CR11R12)q, or (CR11R12)pS(O)2NRc(CR11R12)q, wherein said C1-8 alkylene, C2-8 alkenylene, C2-8 alkynylene, cycloalkylene, arylene, heterocycloalkylene, or heteroarylene, is optionally substituted with 1, 2, or 3 substituents independently selected from -D1-D2-D3-D4;

    Z is H, halo, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, C1-4 haloalkyl, halosulfanyl, C1-4 hydroxyalkyl, C1-4 cyanoalkyl, ═

    C—

    Ri, ═

    N—

    Ri, Cy1, NO2, ORa, SRa, C(O)Rb, C(O)NRcRd, C(O)ORa, OC(O)Rb, OC(O)NRcRd, NRcRd, NRcC(O)Rb, NRcC(O)NRcRd, NRcC(O)ORa, C(═

    NRi)NRcRd, NRcC(═

    NRi)NRcRd, S(O)Rb, S(O)NRcRd, S(O)2Rb, NRcS(O)2Rb, C(═

    NOH)Rb, C(═

    NO(C1-6 alkyl)Rb, and S(O)2NRcRd, wherein said C1-8 alkyl, C2-8 alkenyl, or C2-8 alkynyl, is optionally substituted with 1, 2, 3, 4, 5, or 6 substituents independently selected from halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, C1-4 hydroxyalkyl, C1-4 cyanoalkyl, Cy1, CN, NO2, ORa, SRa, C(O)Rb, C(O)NRcRd, C(O)ORa, OC(O)Rb, OC(O)NRcRd, NRcRd, NRcC(O)Rb, NRcC(O)NRcRd, NRcC(O)ORa, C(═

    NRi)NRcRd, NRcC(═

    NRi)NRcRd, S(O)Rb, S(O)NRcRd, S(O)2Rb, NRcS(O)2Rb, C(═

    NOH)Rb, C(═

    NO(C1-6 alkyl))Rb, and S(O)2NRcRd;

    wherein when Z is H, n is 1;

    or the —

    (Y)n

    Z moiety is taken together with i) A2 to which the moiety is attached, ii) R5 or R6 of either T or V, and iii) the C or N atom to which the R5 or R6 of either T or V is attached to form a 4- to 20-membered aryl, cycloalkyl, heteroaryl, or heterocycloalkyl ring fused to the 5-membered ring formed by A1, A2, U, T, and V, wherein said 4- to 20-membered aryl, cycloalkyl, heteroaryl, or heterocycloalkyl ring is optionally substituted by 1, 2, 3, 4, or 5 substituents independently selected from —

    (W)m-Q;

    W is C1-8 alkylenyl, C2-8 alkenylenyl, C2-8 alkynylenyl, O, S, C(O), C(O)NRc′

    , C(O)O, OC(O), OC(O)NRc′

    , NRc′

    , NR6′

    C(O)NRc′

    , S(O), S(O)NRc′

    , S(O)2, or S(O)2NRc′

    ;

    Q is H, halo, CN, NO2, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, C1-8 haloalkyl, halosulfanyl, aryl, cycloalkyl, heteroaryl, or heterocycloalkyl, wherein said C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, C1-8 haloalkyl, aryl, cycloalkyl, heteroaryl, or heterocycloalkyl is optionally substituted with 1, 2, 3 or 4 substituents independently selected from halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, C1-4 hydroxyalkyl, C1-4 cyanoalkyl, Cy2, CN, NO2, ORa′

    , SRa′

    , C(O)Rb′

    , C(O)NRc′

    Rd′

    , C(O)ORa′

    , OC(O)Rb′

    , OC(O)NRc′

    Rd′

    , NRc′

    Rd′

    , NRc′

    C(O)Rb′

    , NRc′

    C(O)NRc′

    Rd′

    , NRc′

    C(O)ORa′

    , S(O)Rb′

    , S(O)NRc′

    Rd′

    , S(O)2Rb′

    , NRc′

    S(O)2Rb′

    , and S(O)2NRc′

    Rd′

    ;

    Cy1 and Cy2 are independently selected from aryl, heteroaryl, cycloalkyl, and heterocycloalkyl, each optionally substituted by 1, 2, 3, 4 or 5 substituents independently selected from halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, C1-4 hydroxyalkyl, C1-4 cyanoalkyl, CN, NO2, ORa″

    , SRa″

    , C(O)Rb″

    , C(O)NRc″

    Rd″

    , C(O)ORa″

    , OC(O)Rb″

    , OC(O)NRc″

    Rd″

    , NRc″

    Rd″

    , NRc″

    C(O)Rb″

    , NRc″

    C(O)ORa″

    , NRc″

    S(O)Rb″

    , NRc″

    S(O)2Rb″

    , S(O)Rb″

    , S(O)NRc″

    Rd″

    , S(O)2Rb″

    , and S(O)2NRc″

    Rd″

    ;

    R1, R2, R3, and R4 are independently selected from H, halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, CN, NO2, OR7, SR7, C(O)R8, C(O)NR9R10, C(O)OR7 OC(O)R8, OC(O)NR9R10, NR9R10, NR9C(O)R8, NRcC(O)OR7, S(O)R8, S(O)NR9R10, S(O)2R8, NR9S(O)2R8, and S(O)2NR9R10;

    R5 is H, halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, CN, NO2, OR7, SR7, C(O)R8, C(O)NR9R10, C(O)OR7, OC(O)R8, OC(O)NR9R10, NR9R10, NR9C(O)R8, NR9C(O)OR7, S(O)R8, S(O)NR9R10, S(O)2R8, NR9S(O)2R8, or S(O)2NR9R10;

    R6 is H, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, OR7, C(O)R8, C(O)NR9R10, C(O)OR7, S(O)R8, S(O)NR9R10, S(O)2R8, or S(O)2NR9R10;

    R7 is H, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl;

    R8 is H, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl;

    R9 and R10 are independently selected from H, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkylcarbonyl, arylcarbonyl, C1-6 alkylsulfonyl, arylsulfonyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl and heterocycloalkylalkyl;

    or R9 and R10 together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group;

    R11 and R12 are independently selected from H and -E1-E2-E3-E4;

    D1 and E1 are independently absent or independently selected from C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, arylene, cycloalkylene, heteroarylene, and heterocycloalkylene, wherein each of the C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, arylene, cycloalkylene, heteroarylene, and heterocycloalkylene is optionally substituted by 1, 2 or 3 substituents independently selected from halo, CN, NO2, N3, SCN, OH, C1-6 alkyl, C1-6 haloalkyl, C2-8 alkoxyalkyl, C1-6 alkoxy, C1-6 haloalkoxy, amino, C1-6 alkylamino, and C2-8 dialkylamino;

    D2 and E2 are independently absent or independently selected from C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, (C1-6 alkylene)r-O—

    (C1-6 alkylene)s, (C1-6 alkylene)r-S—

    (C1-6 alkylene)s, (C1-6 alkylene)r-NRe

    (C1-6 alkylene)s, (C1-6 alkylene)r-CO—

    (C1-6 alkylene)s, (C1-6 alkylene)r-COO—

    (C1-6 alkylene)s, (C1-6 alkylene)r

    CONRe

    (C1-6 alkylene)s, (C1-6 alkylene)r-SO—

    (C1-6 alkylene)s, (C1-6 alkylene)r-SO2

    (C1-6 alkylene)s, (C1-6 alkylene)r-SONRe

    (C1-6 alkylene)s, and (C1-6 alkylene)r-NReCONRf

    (C1-6 alkylene)s, wherein each of the C1-6 alkylene, C2-6 alkenylene, and C2-6 alkynylene is optionally substituted by 1, 2 or 3 substituents independently selected from halo, CN, NO2, N3, SCN, OH, C1-6 alkyl, C1-6 haloalkyl, C2-8 alkoxyalkyl, C1-6 alkoxy, C1-6 haloalkoxy, amino, C1-6 alkylamino, and C2-8 dialkylamino;

    D3 and E3 are independently absent or independently selected from C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, arylene, cycloalkylene, heteroarylene, and heterocycloalkylene, wherein each of the C1-6 alkylene, C2-6 alkenylene, C2-6 alkynylene, arylene, cycloalkylene, heteroarylene, and heterocycloalkylene is optionally substituted by 1, 2 or 3 substituents independently selected from halo, CN, NO2, N3, SCN, OH, C1-6 alkyl, C1-6 haloalkyl, C2-8 alkoxyalkyl, C1-6 alkoxy, C1-6 haloalkoxy, amino, C1-6 alkylamino, and C2-8 dialkylamino;

    D4 and E4 are independently selected from H, halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, C1-4 hydroxyalkyl, C1-4 cyanoalkyl, Cy1, CN, NO2, ORa, SRa, C(O)Rb, C(O)NRcRd, C(O)ORa, OC(O)Rb, OC(O)NRcRd, NRcRd, NRcC(O)Rb, NRcC(O)NRcRd, NRcC(O)ORa, C(═

    NRi)NRcRd, NRcC(═

    NRi)NRcRd, S(O)Rb, S(O)NRcRd, S(O)2Rb, NRcS(O)2Rb, C(═

    NOH)Rb, C(═

    NO(C1-6 alkyl)Rb, and S(O)2NRcRd, wherein said C1-8 alkyl, C2-8 alkenyl, or C2-8 alkynyl, is optionally substituted with 1, 2, 3, 4, 5, or 6 substituents independently selected from halo, C1-4 alkyl, C2-4 alkenyl, C2-4 alkynyl, C1-4 haloalkyl, halosulfanyl, C1-4 hydroxyalkyl, C1-4 cyanoalkyl, Cy1, CN, NO2, ORa, SRa, C(O)Rb, C(O)NRcRd, C(O)ORa, OC(O)Rb, OC(O)NRcRd, NRcRd, NRcC(O)Rb, NRcC(O)NRcRd, NRcC(O)ORa, C(═

    NRi)NRcRd, NRcC(═

    NRi)NRcRd, S(O)Rb, S(O)NRcRd, S(O)2Rb, NRcS(O)2Rb, C(═

    NOH)Rb, C(═

    NO(C1-6 alkyl))Rb, and S(O)2NRcRd;

    Ra is H, Cy1, —

    (C1-6 alkyl)-Cy1, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, wherein said C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, or C2-6 alkynyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    Rb is H, Cy1, —

    (C1-6 alkyl)-Cy1, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, wherein said C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, or C2-6 alkynyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    Ra′

    and Ra″

    are independently selected from H, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl and heterocycloalkylalkyl, wherein said C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    Rb′

    and Rb″

    are independently selected from H, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl and heterocycloalkylalkyl, wherein said C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    Rc and Rd are independently selected from H, Cy1, —

    (C1-6 alkyl)-Cy1, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, wherein said C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, or C2-6 alkynyl, is optionally substituted with 1, 2, or 3 substituents independently selected from Cy1, —

    (C1-6 alkyl)-Cy1, OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, and halosulfanyl;

    or Rc and Rd together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 substituents independently selected from Cy1, —

    (C1-6 alkyl)-Cy1, OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, and halosulfanyl;

    Rc′

    and Rd′

    are independently selected from H, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl and heterocycloalkylalkyl, wherein said C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, c1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    or Rc′

    and Rd′

    together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    Rc″

    and Rd″

    are independently selected from H, C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl and heterocycloalkylalkyl, wherein said C1-10 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, aryl, heteroaryl, cycloalkyl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl or heterocycloalkylalkyl is optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, halosulfanyl, C1-6 haloalkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    or Rc″

    and Rd″

    together with the N atom to which they are attached form a 4-, 5-, 6- or 7-membered heterocycloalkyl group optionally substituted with 1, 2, or 3 substituents independently selected from OH, CN, amino, halo, C1-6 alkyl, C1-6 haloalkyl, C1-6 haloalkyl, halosulfanyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl and heterocycloalkyl;

    Ri is H, CN, NO2, or C1-6 alkyl;

    Re and Rf are independently selected from H and C1-6 alkyl;

    Ri is H, CN, or NO2;

    m is 0 or 1;

    n is 0 or 1;

    p is 0, 1, 2, 3, 4, 5, or 6;

    q is 0, 1, 2, 3, 4, 5 or 6;

    r is 0 or 1; and

    s is 0 or 1;

    wherein when X is N, n is 1, and the moiety formed by A1, A2, U, T, V, and —

    (Y)n

    Z has the formula;

    then Y is other than (CR11R12)pC(O)NRc(CR11R12)q;

    (b) compounds of Formula II;

    wherein;

    La is SO2 or CO;

    R1a is C1-6 alkyl, C3-7 cycloalkyl, phenyl, 5- or 6-membered heteroaryl, indolyl, NR2aR3a, or OR4a, wherein said alkyl, cycloalkyl, phenyl, or heteroaryl is optionally substituted with 1, 2, or 3 substituents independently selected from F, CN, and C1-4 alkyl;

    R2a and R3a are independently selected from H, C1-4 alkyl, and phenyl; and

    R4a is C1-6 alkyl, phenyl, or benzyl;

    (c) compounds of Formula III;

    wherein;

    R5a and R6a are independently selected from H, F, CN, OH, C1-4 alkyl, benzyloxy, C2-8 dialkylaminosulfonyl, and 5-membered heteroaryl, wherein said alkyl is optionally substituted by 1, 2, or 3 substituents selected from F, OH, CN, and C1-4 alkoxy, and wherein said 5-membered heteroaryl is optionally substituted with C1-4 alkyl;

    and pharmaceutically acceptable salts thereof;

    provided that compound of Formula I is not selected from 4-[5-(2-isopropyl-5-methylcyclohexyloxymethyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(4-tert-butylphenoxymethyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-cyclopentylethyl-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(2,6-difluorophenyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(1-tert-butyl-3-methyl-1H-pyrazol-5-yl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(benzyloxymethyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(3-fluorophenyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(phenoxymethyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(4-methoxybenzyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(phenylthiomethyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(3-methylbutyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-benzyl-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(2,2-dimethylpropyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-methyl-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(formyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(furan-2-yl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(1-methyl-1H-pyrrol-2-yl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-(sec-butyl)-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine;

    4-[5-cyclopropyl-1,2-4-oxadiazol-3-yl]-1H-pyrrolo[2,3-b]pyridine; and

    pharmaceutically acceptable salts of any of the aforementioned.

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