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According to the procedure given for the synthesis of 206e, 205d (52.0 g, 166.0 mmol) was reacted with LiBH4 (5.4 g, 247.9 mmol) and methanol (8.2 g, 255.9 mmol) in CH2Cl2 (180 mL) to afford 206d (38.0 g, 84%) as an oil. 1H NMR (CDCl3): δ 7.5-7.1 (m, 5H), 3.60 (d, 1H, J=10.8), 3.53 (d, 1H, J=10.8), 3.34 (t, 2H, J=7.0), 1.90-1.78 (m, 3H), 1.62-1.26 (m, 3H), 1.35 (s, 3H), 1.14 (m, 1H). 13C NMR (CDCl3): δ 144.4, 128.4, 126.5, 126.1, 72.4, 43.2, 37.4, 33.5, 33.3, 22.5, 21.4.