(2S)-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-5-bromo-2-(4-chlorphenyl)-piperidin-4-one 、
N-甲基-N-苯基硫脲 以
乙醇 为溶剂,
反应 24.0h,
以12%的产率得到(6S)-N5-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-6-(4-chlorophenyl)-2-(N-methyl-N-phenylamino)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine