Br[C:2]1[S:3][CH:4]=[C:5]([CH2:7][O:8][N:9]=[C:10]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([S:23][CH3:24])[CH:18]=2)[C:11]2[N:15]([CH3:16])[N:14]=[N:13][N:12]=2)[N:6]=1.[CH:25]1([C:28]#[CH:29])[CH2:27][CH2:26]1.C1(CNCC2CCCCC2)CCCCC1>O1CCCC1.[Cu]I.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH:25]1([C:28]#[C:29][C:2]2[S:3][CH:4]=[C:5]([CH2:7][O:8][N:9]=[C:10]([C:17]3[CH:22]=[CH:21][CH:20]=[C:19]([S:23][CH3:24])[CH:18]=3)[C:11]3[N:15]([CH3:16])[N:14]=[N:13][N:12]=3)[N:6]=2)[CH2:27][CH2:26]1A solution of N-[(2-bromo-1,3-thiazol-4-yl)methoxy]-1-[3-(methylsulfanyl)phenyl]-1-(1-methyl-1H-tetrazol-5-yl)methanimine (150 mg, 0.35 mmol), cyclopropylacetylene (8.44 M in toluene, 84 μL, 0.70 mmol), copper(I) iodide (6.72 mg, 0.03 mmol), tetrakis(triphenylphosphine)palladium(0) (20.4 mg, 0.05 mmol), N,N-dicyclohexylmethylamine (0.30 mL, 1.41 mmol) in degassed tetrahydrofuran (3 mL) was stirred under an Argon atmosphere at room temperature for 24 h. After evaporation of the solvent in vacuo, purification on silica gel afforded N-{[2-(cyclopropylethynyl)-1,3-thiazol-4-yl]methoxy}-1-[3-(methyl-sulfanyl)phenyl]-1-(1-methyl-1H-tetrazol-5-yl)methanimine as a thick oil [116 mg, yield 80%; HPLC/MS: m/z=411 (M+H); logP(HCOOH)=3.99].
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