(6R)-(-)-4-oxo-6-phenyl-5,6-dihydro-4H-pyridine-1,3-dicarboxylic acid 1-tert-butyl ester 3-methyl ester 在
platinum on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
以94%的产率得到(6R)-(-)-4-hydroxy-6-phenyl-5,6-dihydro-2H-pyridine-1,3-dicarboxylic acid 1-tert-butyl ester 3-methyl ester