摘要
采用了价格低廉的天然手性化合物L-脯氨酸为原料,通过以下三个连续步骤:(1)用NaBH4/I2体系直接还原成L-脯氨醇,(2)用(Boc)2O保护得到N-叔丁氧羰基-L-脯氨醇,(3)和甲烷磺酰氯反应合成了产率为96%的N-叔丁氧羰基-甲磺酸脯氨酯,其结构经1H-NMR确证.
The material is the inexpensive L-proline, natural chiral compound. There is three continuous precesses: ( 1 ) using NaBH4/I2, L-proline is reducted to L-prolinol ; (2) L-prolinol is protected to N-tert-Butoxycarbonyl-L-prolinol by (Boc) 2 O ; ( 3 ) N-tert-Butoxycarbonyl-L-prolinoloand methylsulfonyl chloride react on each other, acquiring N-tert-Butoxycarbonyl-L-Prolinol-Methanesulfonate. Its yield is 96%. The structures were certified by 1^H-NMR.
出处
《西华师范大学学报(自然科学版)》
2007年第2期204-206,共3页
Journal of China West Normal University(Natural Sciences)
基金
西华师大校列项目资助(05B030)
关键词
L-脯氨酸
还原
酯化
化学合成
L-proline
reduction
esterification
chemical synthesis