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1. A method for promoting plant growth, which comprises
treating a plant with at least one compound represented by the following Formula (1): wherein A1 represents a nitrogen atom or a —C(R5)═, A2 represents —N(R12)—, an oxygen atom, or a sulfur atom, when A1 is a nitrogen atom, A2 represents —N(R12)— or an oxygen atom, when A1 is —C(R5)═, A3 represents a nitrogen atom or ═C(R4)—, W represents —OR6, —ON═CR7R8, —SR9, or —NR7R10, when A2 is —N(R12)— or a sulfur atom or when A2 is an oxygen atom and A3 is a nitrogen atom, W represents —OR6, —ON═CR7R8, —SR9, or —NR16R17, when A2 is an oxygen atom and A3 is ═C(R4)—, R1, R2, R3, and R4 are the same or different and each represents a hydrogen atom, a halogen atom, a cyano group, a nitro group, a C1-C6 alkyl group optionally having one or more groups selected from a group X, a C2-C6 alkenyl group optionally having one or more groups selected from the group X, a C2-C6 alkynyl group optionally having one or more groups selected from the group X, a phenyl group optionally having one or more groups selected from a group Y, a 6-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, a 5-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, a carboxy group, a C2-C6 alkylcarbonyl group optionally having one or more halogen atoms, a benzoyl group optionally having one or more groups selected from the group Y, a C2-C6 alkoxycarbonyl group, an aminocarbonyl group, —NR11R12, —S(O)2NR7R11, —OR11, —S(O)mR11, or —SF5, when A2 is —N(R12)— or a sulfur atom, or when at least one of A1 and A3 is a nitrogen atom and A2 is an oxygen atom, R1, R2, R3, and R4 are the same or different and each represents a hydrogen atom, a halogen atom, a cyano group, a nitro group, a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C2-C6 alkenyl group optionally having one or more groups selected from the group X, a C2-C6 alkynyl group optionally having one or more groups selected from the group X, a phenyl group optionally having one or more groups selected from the group Y, a 6-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, a 5-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, a carboxy group, a C2-C6 alkylcarbonyl group optionally having one or more halogen atoms, a benzoyl group optionally having one or more groups selected from the group Y, a C2-C6 alkoxycarbonyl group, an aminocarbonyl group, —NR12R15, —S(O)2NR7R11, —OR15, —S(O)mR11, or —SF5, when A1 is —C(R5)═, A2 is an oxygen atom, and A3 is a ═C(R4)—, R5 represents a hydrogen atom, a halogen atom, a cyano group, a nitro group, a C1-C6 alkyl group optionally having one or more groups selected from the group X, a carboxy group, a C2-C6 alkoxycarbonyl group, —NR11R12, —S(O)2NR7R11, —OR13, a phenyl group optionally having one or more groups selected from the group Y, a 6-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, or a 5-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, R6 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more groups selected from the group Z, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a C4-C7 cycloalkylalkyl group optionally having one or more halogen atoms, a C3-C6 cycloalkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, or a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, R7 and R8 are the same or different and each represents a C1-C6 alkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, or a hydrogen atom, R9 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a phenyl group optionally having one or more groups selected from the group Y, or a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, R10 represents a hydrogen atom, a cyano group, a C1-C6 alkyl group optionally having one or more groups selected from a group Z, a phenyl group optionally having one or more groups selected from the group Y, a benzyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, —OR7, or —NR7R8, R11 represents a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a C4-C7 cycloalkylalkyl group optionally having one or more halogen atoms, a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, a 6-membered aromatic heterocyclic C1-C3 alkyl group in which a 6-membered aromatic heterocyclic portion may have optionally one or more groups selected from the group Y, a phenyl group optionally having one or more groups selected from the group Y, a C3-C6 cycloalkyl group optionally having a halogen atom, or a hydrogen atom (provided that when m in —S(O)mR11 is 1 or 2, R11 does not represent a hydrogen atom), R12 represents a hydrogen atom, a C1-C4 alkyl group optionally having one or more halogen atoms, a C1-C4 alkylsulfonyl group optionally having one or more halogen atoms, a phenylsulfonyl group optionally having one or more groups selected from the group Y, a C7-C9 phenylalkylsulfonyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, a C2-C6 alkoxycarbonyl group, —C(O)R14, or —C(O)NR7R8, R13 represents a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a C4-C7 cycloalkylalkyl group optionally having one or more halogen atoms, a C3-C6 cycloalkyl group optionally having one or more halogen atoms, a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, a phenyl group optionally having one or more groups selected from the group Y, a C2-C6 alkylcarbonyl group optionally having one or more halogen atoms, a benzoyl group optionally having one or more groups selected from the group Y, a C1-C6 alkylsulfonyl group optionally having one or more halogen atoms, a phenylsulfonyl group optionally having one or more groups selected from the group Y, or a hydrogen atom, R14 represents a hydrogen atom, a C1-C6 alkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, a 5-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, or a 6-membered aromatic heterocyclic group optionally having one or more groups selected from the group Y, R15 represents a C1-C6 alkyl group optionally having one or more groups selected from the group X, a C3-C6 alkenyl group optionally having one or more groups selected from the group X, a C3-C6 alkynyl group optionally having one or more groups selected from the group X, a C4-C7 cycloalkylalkyl group optionally having one or more halogen atoms, a C7-C9 phenylalkyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, a 6-membered aromatic heterocyclic C1-C3 alkyl group in which a 6-membered aromatic heterocyclic portion may have optionally one or more groups selected from the group Y, a C3-C6 cycloalkyl group optionally having one or more halogen atoms, or a hydrogen atom, R16 represents a C1-C6 alkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, or a hydrogen atom, R17 represents a hydrogen atom, a cyano group, a C1-C6 alkyl group optionally having one or more groups selected from the group Z, a phenyl group optionally having one or more groups selected from the group Y, a benzyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, —OR7, or —NR7R8, when R16 is a phenyl group optionally having one or more groups selected from the group Y, R17 represents a cyano group, a phenyl group optionally having one or more groups selected from the group Y, a benzyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, —OR7, or —NR7R8, when A1 is a nitrogen atom and R16 is a C1-C6 alkyl group optionally having one or more halogen atoms or a hydrogen atom, R17 represents a cyano group, a phenyl group optionally having one or more groups selected from the group Y, a benzyl group in which a benzene ring portion may have optionally one or more groups selected from the group Y, —OR18, or —NR7R8, when A1 is —C(R5)═ and R16 is a C1-C6 alkyl group optionally having one or more halogen atoms or a hydrogen atom, R18s are the same or different and each represents a methyl group having one or more halogen atoms, a C2-C6 alkyl group optionally having one or more halogen atoms, a phenyl group optionally having one or more groups selected from the group Y, or a hydrogen atom, and m represents 0, 1, or 2, the group X represents a group consisting of a halogen atom, a cyano group, and a C1-C6 alkoxy group optionally having one or more halogen atoms, the group Y represents a group consisting of a halogen atom, a cyano group, a nitro group, a C1-C6 alkyl group optionally having one or more halogen atoms, and a C1-C6 alkoxy group optionally having one or more halogen atoms, and the group Z represents a group consisting of a halogen atom, a hydroxyl group, a C1-C6 alkoxy group optionally having one or more halogen atoms, and a C2-C6 alkoxycarbonyl group. |
