[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[OH:9])=[CH:4][CH:3]=1.[H-].[Na+].[Cl:18][C:19]([Cl:23])([Cl:22])[C:20]#[N:21]>CCOCC>[Cl:18][C:19]([Cl:23])([Cl:22])[C:20](=[NH:21])[O:9][CH:8]([C:5]1[CH:4]=[CH:3][C:2]([Br:1])=[CH:7][CH:6]=1)[C:10]1[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1(4-bromophenyl)(phenyl)methanol from example 67 step 2 (175 g, 0.665 mol) was dissolved in Et2O (700 mL) and sodium hydride (2.66 g of 60% dispension in oil, 0.067 mol, 0.1 eg) was added. Reaction mixture was cooled to 0° C. and trichloroacetonitrile (96 g, 0.665 mol, 1 eg) was added dropwise over 15 min. Reaction mixture was allowed to warm to room temperature and stirred for 1.5 hours. Mixture was evaporated to dryness and solid was stirred in hexane for 18 hours. The solid was filtered to give the product.
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