STANNOUS TRIFLATE MEDIATED ALDOL REACTION OF 3-(3-ALKOXY AND 3-AMINOPROPANOYL) THIAZOLIDINE-2-THIONES STEREOSELECTIVE SYNTHESIS OF β-LACTAM DERIVATIVES
STANNOUS TRIFLATE MEDIATED ALDOL REACTION OF 3-(3-ALKOXY AND 3-AMINOPROPANOYL) THIAZOLIDINE-2-THIONES STEREOSELECTIVE SYNTHESIS OF β-LACTAM DERIVATIVES