[H-].[Na+].C(S)C.[Br:6][C:7]1[CH:8]=[C:9]2[C:14](=[CH:15][C:16]=1[O:17]C)[C:13]([CH3:20])([CH3:19])[CH2:12][CH:11]=[C:10]2[CH:21]([CH3:23])[CH3:22].Cl>CN(C=O)C.O.C(OCC)(=O)C>[Br:6][C:7]1[C:16]([OH:17])=[CH:15][C:14]2[C:13]([CH3:19])([CH3:20])[CH2:12][CH:11]=[C:10]([CH:21]([CH3:22])[CH3:23])[C:9]=2[CH:8]=1To a suspension of sodium hydride 60% w/w (0.30 g, 6.8 mmol) in 20 mL of DMF under argon atmosphere was added slowly ethanethiol 98% (0.5 mL, 6.8 mmol), and the resulting solution was stirred for 15 min. A solution of 6-bromo-4-isopropyl-1,1-dimethyl-7-methoxy-1,2-dihydronaphthalene (Compound 102, 600 mg, 1.9 mmol) in 3 mL of DMF was added, and the reaction mixture was refluxed for 5 h, then cooled to room temperature, acidified with 2N HCl, diluted with water andextracted with ethyl acetate. The combined extracts were washed with brine, dried over MgSO4, and filtered. The solvent was removed to afford 0.57 g (100%) of the title compound as a dark brown oil.
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