(3S,4S)-3-[(phenylmethoxy)methyl]-4-hydroxy-3,4-dihydro-1,2-thiazine-N-carboxylic acid 1,1-dioxide 1,1-dimethylethyl ester 、
苯硫酚 在
4-二甲氨基吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
生成
(3S)-[(phenylmethoxy)methyl]-(4R)-hydroxy-(5R)-phenylthio-3,4,5,6-tetrahydro-1,2-thiazine-N-carboxylic acid 1,1-dioxide 1,1-dimethylethyl ester 、 (3S)-[(phenylmethoxy)methyl]-(4R)-hydroxy-(5S)-phenylthio-3,4,5,6-tetrahydro-1,2-thiazine-N-carboxylic acid 1,1-dioxide 1,1-dimethylethyl ester