tert-butyl (4S,5R)-4-(((2S,3R)-3-hydroxy-1-methoxy-1-oxobutan-2-yl)carbamoyl)-2,2,5-trimethyloxazolidine-3-carboxylate 在
MoO
2(2+)*2C
7H
6NO
2(1-) 作用下,
以
甲苯 为溶剂,
以70 %的产率得到methyl (4S,5R)-2-((4S,5R)-3-(tert-butoxycarbonyl)-2,2,5-trimethyloxazolidin-4-yl)-5-methyl-4,5-dihydrooxazole-4-carboxylate