“…The organic solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography using hexane and ethyl acetate as eluent to produce racemic alcohols 1 – 6 in excellent yields ( 1 , 70%; 2 , 95%; 3 , 92%; 4 , 97%; 5 , 94%; 6 , 93%). The spectroscopic data ( 1 H-NMR, MS and IR) of alcohols 1 , 2 , 4 and 6 agreed with the data reported in the literature [ 22 , 25 , 26 , 27 , 28 ].…”