[C:1]([C:3]([C:11]1[S:12][CH:13]=[CH:14][C:15]=1[C:16]#[N:17])([CH:8]([CH3:10])[CH3:9])[CH2:4][CH2:5][CH2:6]O)#[N:2].C(N(CC)CC)C.S(Cl)(C)(=O)=O.[I-:30].[Na+]>C(#N)C.[Cl-].[Na+].O.C(OCC)(=O)C>[C:1]([C:3]([C:11]1[S:12][CH:13]=[CH:14][C:15]=1[C:16]#[N:17])([CH:8]([CH3:10])[CH3:9])[CH2:4][CH2:5][CH2:6][I:30])#[N:2]244 mg (0.98 mmol) of 4-cyano-5-methyl-4-(3-cyano-2-thienyl)hexanol was dissolved in 10 ml of acetonitrile and 0.16 ml (1.18 mmol) of triethylamine, and 83.6 μl (108 mmol) of mesyl chloride was added thereto. After about 5 minutes, 1.47 g (9.80 mmol) of sodium iodide was added. After completion of the reaction, brine and ethyl acetate were added, and the ethyl acetate layer was washed with an aqueous sodium thiosulfate aqueous solution and brine, dried over anhydrous magnesium sulfate and evaporated, to give a crude product. The crude product was subjected to silica gel (eluted at ethyl acetate:hexane=1:10), to give 334 mg (0.93 mmol, 95.1%) of the title compound as a yellow oil.
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