| 摘要 |
Compounds having the formula (I) <CHEM> and their pharmaceutically acceptable salts, wherein one or two of A1, A2, A3, and A4 is N, and the remaining A1, A2, A3, and A4 are CH, provided that if A4 is N, then one of A1, A2, and A3 is also N, and provided that one of A1, A2, and A3 may be CX where X is halo; and each of R1, R2, and R3 is independently hydrogen, C1-C4 alkyl, C1-C4, alkoxy, allyloxy, benzyloxy, (C1-C4 alkyl) thio, (C1-C4 alkyl) sulfinyl, (C1-C4 alkyl)sulfonyl, hydroxy, halo, cyano, nitro, amino, mono- or di-(C1-C4alkyl)amino, trifluoromethyl, or Z-Q-substituted C1-C4 alkoxy, wherein Q is oxygen, sulfur, sulfinyl, sulfonyl, or a bond, and Z is C1-C4 alkyl, phenyl or phenyl substituted with halo, C1-C4 alkyl, C1-C4 alkoxy, hydroxy, nitro, amino, C1-C4 alkylthio, C1-C4 alkylsulfinyl, or C1-C4 alkylsulfonyl are ionotropic agents or intermediates thereto. |
