A compound having Formula (Ia) ** Formula ** or a therapeutically acceptable salt thereof, wherein A1 is N or C (A2)； A2 is H, R1, OR1, SR1, S (O) R1, SO2R1, C (O) R1, C (O) OR1, OC (O) R1, NHR1, N (R1) 2, C (O) NHR1, C (O) N (R1) 2, NHC (O) R1, NR1C (O) R1, NHC (O) OR1, NR1C (O) OR1, NHC (O) NH2, NHC (O) NHR1, NHC (O) N (R1) 2, NR1C (O) NHR1, NR1C (O) N (R1) 2, SO2NH2, SO2NHR1, SO2N (R1) 2, NHSO2R1, NR1SO2R1, NHSO2NHR1, NHSO2N (R1) 2, NR1SO2NHN1, NR1SO2 (R1SO2) 2, C (O) NHNOH, C (O) NHNOR1, C (O) NHSO2R1, C (NH) NH2, C (NH) NHR1, C (NH) N (R1) 2 NHSO2NHR1, NHSO2N (CH3) R1, N (CH3) SO2N (CH3) R1, F, Cl, Br, I, CN, NO2, N3, OH, C (O) H, CHNOH, CH (NOCH3), CF3, C (O) OH, C (O) NH2 or C (O) OR1A； D1 is H, R1, OR1, SR1, S (O) R1, SO2R1, C (O) R1, C (O) OR1, OC (O) R1, NHR1, N (R1) 2, C (O) NHR1, C (O) N (R1) 2, NHC (O) R1, NR1C (O) R1, NHC (O) OR1, NR1C (O) OR1, NHC (O) NH2, NHC (O) NHR1, NHC (O) N (R1) 2, NR1C (O) NHR1, NR1C (O) N (R1) 2, SO2NH2, SO2NHR1, SO2N (R1) 2, NHSO2R1, NR1SO2R1, NHSO2NHR1, NHSO2N (R1) 2, NR1SO2NHN1, NR1SO2 (R1SO2) 2, C (O) NHNOH, C (O) NHNOR1, C (O) NHSO2R1, C (NH) NH2, C (NH) NHR1, C (NH) N (R1) 2 NHSO2NHR1, NHSO2N (CH3) R1, N (CH3) SO2N (CH3) R1, F, Cl, Br, I, CN, NO2, N3, OH, C (O) H, CHNOH, CH (NOCH3), CF3, C (O) OH, C (O) NH2 or C (O) OR1A； E1 is H, R1, OR1, SR1, S (O) R1, SO2R1, C (C (O) R1, C (O) OR1, OC (O) R1, NHR1, N (R1) 2, C (O) NHR1, C (O) N (R1) 2, NHC (O) R1, NR1C (O) R1, NHC (O) OR1, NR1C (O) OR1, NHC (O) NH2, NHC (O) NHR1, NHC ( O) N (R1) 2, NR1C (O) NHR1, NR1C (O) N (R1) 2, SO2NH2, SO2NHR1, SO2N (R1) 2, NHSO2R1, NR1SO2R1, NHSO2NHR1, NHSO2N (R1) 2, NR1SO2NHN1 (NR1SO2SO2) R1) 2, C (O) NHNOH, C (O) NHNOR1, C (O) NHSO2R1, C (NH) NH2, C (NH) NHR1, C (NH) N (R1) 2 NHSO2NHR1, NHSO2N (CH3) R1 , N (CH3) SO2N (CH3) R1, F, Cl, Br, I, CN, NO2, N3, OH, C (O) H, CHNOH, CH (NOCH3), CF3, C (O) OH, C ( O) NH2 or C (O) OR1A； and Y1 is H, CN, NO2, C (O) OH, F, Cl, Br, I, CF3, OCF3, CF2CF3, OCF2CF3, R17, OR17, C (O) R17 , C (O) OR17, SR17, NH2, N
