Toluene-4-sulfonic acid (R)-1-(2-hydroxy-5-methyl-phenyl)-6-oxo-2-phenyl-1,2,3,6-tetrahydro-pyridin-4-yl ester 、 alkaline earth salt of/the/ methylsulfuric acid 以
四氢呋喃 为溶剂,
以78%的产率得到(R)-1-(2-Hydroxy-5-methyl-phenyl)-4-methyl-6-phenyl-5,6-dihydro-1H-pyridin-2-one