Disclosed are compounds of Formula 1, N-oxides, and salts thereof,whereinL is (CR13aR13b)t, CR14═CR14, C≡C, CR15aR15bX, XCR15aR15b, CO, O, S(O)p, NR5, CONR5, NR5CO, NR5SO2 or SO2NR5X is O, S, SO, SO2, or NR5and Q, R1, R2, R3, R5, R13a, R13b, R14, R15a, R15b t, p, n and m are as defined in the disclosure.Also disclosed are compositions containing the compounds of Formula 1 and methods for treating helminth infections comprising administration to an animal a parasiticidally effective amount of a compound or a composition of the invention.
