Asymmetric Synthesis of Functionalized Tertiary Alcohols by Diastereoselective Aldol Reaction of Silyl Enol Ether and Ketene Silyl Acetal with α-Keto Esters Bearing an Optically Active Cyclitol as a Chiral Auxiliary - AKIYAMA, Takahiko; ISHIKAWA, Keiichiro; OZAKI, Shoichiro (Synlett, 1994)