Claim 1: Compounds of the formula (1) wherein R¹ is C₁₋₆ alkyl,1-Cque alkenyl,1-C₂₋₆ alkynyl,C₃₋₈ cycloalkyl,C183238c83288a - lessor c83218c833162622；C₂₋₄-phenyl-alkenyl or C fen-phenyl-alkynyl；The crystalline part of R1 is not further replaced, or there are 1, 2, 3 or at most the same or different r74919 groups, which are independently selected from each other,de R hal geno OH CN nitro alcoxi CC₃₋₈ cycloalkyl,C₃₋₈ halocycloalkyl and halogen-C₁₋₄ alkoxy；In this case, cyclopentyl ions and / or phenyl in R1 are not further substituted, or there are 1, 2, 3, 4, 5 or at most the same or different r74955 groups, which are independently selected from each other,de R hal geno OH CN nitro alquilo CC₁₋₄ alkoxy,Halogen tar c8321c83318324；C₃₋₈ cycloalkyl,C₃₋₈ halocycloalkyl and halogen-C₁₋₄ alkoxy；R² is hydrogen, C₁₋₆ alkyl,C₂₋₆ alkenyl,1. C 83228331 asphalt；C₃₋₈ cycloalkyl,C183238c83288a - lessor c83218c833162622；3. Phenyl, phenyl tar c8332124；C₂₋₄-phenyl-alkenyl or C fen-phenyl-alkynyl；wherein the aliphatic portions of R² are not additionally substituted or have 1, 2, 3 or as many as possible of identical or different R²ᵃ groups that are selected, independently of each other,De: R: 74919 halogen, oh, CN, nitro, alcoxi c832183；C₃₋₈ cycloalkyl,C₃₋₈ halocycloalkyl and halogen-C₁₋₄ alkoxy；2. In the following cases, the cyclopropyl and / or phenyl ions that do not further replace R 2, or there are 1, 2, 3, 4, 5 or at most the same or different groups of 74955 centigrade, selected independently from each other；de R hal geno OH CN nitro alquilo CC₁₋₄ alkoxy,Halogen tar c8321c83318324；C₃₋₈ cycloalkyl,C₃₋₈ halocycloalkyl and halogen-C₁₋₄ alkoxy；N equals 0, 1, 2, 3 or 4； R 3 is selected independently of halogen, CN, no 832222；OH, SH, C₁₋₆ alkyl,C₁₋₆ alkoxy,C₂₋₆ alkenyl,1. C 83228331 asphalt；C₃₋₈ cycloalkyl,C₃₋₈ cycloalkyloxy,NH.8322；NH (C₁₋₄ alkyl),N (C₁₋₄ alkyl) ₂,NH (cicloalquilo C)N (cicloalquilo C)S (O) ₚ (C₁₋₄ alkyl),C (= O) (c833213124 rental)This is my life.C (= O) (o-lessor c8
