High stress resistant plant growth regulator and preparation method and use thereof

A compound represented by formula (I), or a salt, or an optical isomer or a racemate, or a solvate, thereof,

• wherein,
• R1 is H, halogen, C1-C3 alkyl, or C1-C3 haloalkyl;
• R2 is H, halogen, C1-C3 alkyl, or C1-C3 haloalkyl;
• R3 is H, halogen, C1-C3 alkyl, or C1-C3 haloalkyl;
• R4 is H, halogen, C1-C3 alkyl, or C1-C3 haloalkyl;
• R5 is halogen, C1-C3 alkyl, C1-C3 haloalkyl, SF5 or C3-C8 cycloalkyl;
• R6 is substituted or unsubstituted C1-C7 alkyl, substituted or unsubstituted C2-C7 alkenyl, substituted or unsubstituted C2-C7 alkynyl, substituted or unsubstituted C3-C7 cycloalkyl, or substituted or unsubstituted —Ra—O—Rb, wherein Ra is C1-C2 alkylene and Rb is H, C1-C3 alkyl;
• and substituted means substituted with one or more substituents selected from the group consisting of:
• halogen, —ORb, —CN, —N(Rb)2, and nitro;
• R7 is selected from the group consisting of:
• H, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C2-C6 alkenyl, substituted or unsubstituted C2-C6 alkynyl, substituted or unsubstituted C3-C8 cycloalkyl, substituted or unsubstituted C5-C10 heterocyclyl, Rc—C(O)—, —ORb, —CN, and —N(Rb)2;
• Rc is selected from the group consisting of:
• hydroxyl, mercapto, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C1-C6 alkoxy;
• wherein the heterocyclyl contains 1 to 2 heteroatoms selected from N, O, S, and substituted means substituted with one or more substituents selected from the group consisting of:
• halogen, —ORb, —CN, —N(Rb)2, and nitro;
• R8, R9, R10 are each independently selected from the group consisting of:
• (i) H;
• (ii) substituted or unsubstituted C1-C6 alkyl, C3-C8 alkoxy, substituted or unsubstituted C3-C8 cycloalkyl, halogen, Rc—C(O)—, —OH, —NH2;
• R11 is selected from the group consisting of:
• hydroxyl, mercapto, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C1-C6 alkoxy;
• wherein substituted means substituted with one or more substituents selected from the group consisting of:
• halogen, —ORb, —CN, —N(Rb)2, and nitro;
• R11 is H, C1-C3 alkyl, or C1-C3 haloalkyl;
• X is NR13, O, or S, R13 is none, or selected from the group consisting of:
• H, halogen, C1-C3 alkyl, C2-C3 alkenyl, C2-C3 alkenyl, and C1-C3 haloalkyl;
• m=1 or 2;
• “” represents a single bond or a double bond.