[CH2:1]([O:3][C:4](=[O:13])[C:5]1[CH:10]=[CH:9][N:8]=[C:7]([CH3:11])[C:6]=1[Cl:12])[CH3:2].[CH:14]1(B(O)O)C[CH2:15]1>>[CH2:1]([O:3][C:4](=[O:13])[C:5]1[CH:10]=[CH:9][N:8]=[C:7]([CH:11]2[CH2:15][CH2:14]2)[C:6]=1[Cl:12])[CH3:2]This compound was prepared using a method analogous to that of 3-chloro-2-methylisonicotinic acid ethyl ester (A.2.5.2), cyclopropylboronic acid replacing trimethylboroxine. Purification by CC (KP-SIL™ from Biotage) using Hept/EtOAc (9/1) gives the desired product as colorless oil;
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