[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([OH:12])[CH:6]=[CH:5]2.[C:13]([C@@H:17]1[CH2:22][CH2:21][C@H:20](O)[CH2:19][CH2:18]1)([CH3:16])([CH3:15])[CH3:14].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(C)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>CCOC(C)=O.CCCCCC.C(Cl)Cl>[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([O:12][C@H:20]1[CH2:21][CH2:22][C@H:17]([C:13]([CH3:16])([CH3:15])[CH3:14])[CH2:18][CH2:19]1)[CH:6]=[CH:5]2The mixture of 6-bromo-quinolin-2-ol (1.00 g, 0.00446 mol), cis-4-tert-butylcyclohexanol (0.837 g, 0.00536 mol), and triphenylphosphine (1.405 g, 0.005356 mol) in toluene (9.508 mL, 0.08926 mol) was heated to reflux, and diisopropyl azodicarboxylate (1.054 mL, 0.005356 mol) was added dropwise and was stirred at reflux for 6 hours. The mixture was taken up into methylene chloride and subjected to chromatography with EtOAc/hexane (0:100 to 40:60) to give 6-bromo-2-(trans-4-tert-butylcyclohexyloxy)quinoline as a white solid (0.581 g, 36%). LCMS: Rf=2.82 min (362.38, [M]+, 100%).
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