trans-2-methoxycarbonyl-4,5-dimethyl-3,6-dihydro-2H-thiopyran S-oxide 在
porcine liver esterase 、
sodium hydroxide 作用下,
以
水 为溶剂,
生成 (1R,2S)-4,5-Dimethyl-1-oxo-1,2,3,6-tetrahydro-1λ
4-thiopyran-2-carboxylic acid 、 (1S,2R)-4,5-Dimethyl-1-oxo-1,2,3,6-tetrahydro-1λ
4-thiopyran-2-carboxylic acid