(4S)-2-(2-methyl-4-nitrophenylimino)-4-isobutyl-1,3-thiazolidine 、
1-溴-2,2-二甲基丙烷 以to afford (4S)-2-(N-(2,2-dimethylpropyl)-2-methyl-4-nitrophenylamino)-4-isobutyl-1,3-thiazoline的产率得到(4S)-2-(N-(2,2-dimethylpropyl)-2-methyl-4-nitrophenylamino)-4-isobutyl-1,3-thiazoline