The present invention relates to novel oxadiazoles of Formula I.wherein, R1, L1, A1, A2, A3, A4, L2and R2are as defined in the detailed description. The present invention also relates to a combination or a composition comprising the compound of Formula I.本發明涉及式I的新型惡二唑。其中,R1、L1、A1、A2、A3、A4、L2和R2如詳述中所定義。本發明還涉及包含式I化合物的組合或組合物。