发明授权
US6156895A Process for preparing 4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamide 失效
4-叔丁氧基羰基 - (S) - 哌嗪-2-叔丁基甲酰胺的制备方法

Process for preparing
4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamide
摘要:
An improved process using chiral hydrogenation is described for the synthesis in high yields of a 4-protected-(S)-piperazine-2-tert-butylcarboxamide, an intermediate for an HIV protease inhibitor.
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