borane; tetrabutyl ammonium fluoride; (S)-CBS-oxazaborolidine 1.) THF, 25 deg C, 1 h 10 min, 2.) THF, MeOH, room temp., 1 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

borane; tetrabutyl ammonium fluoride; (S)-CBS-oxazaborolidine 1.) THF, 25 deg C, 1 h 10 min, 2.) THF, MeOH, room temp., 1 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;