(2S,4R,5R,6R)-6-((R)-1,2-Dihydroxy-ethyl)-4,5-dihydroxy-tetrahydro-pyran-2-carboxylic acid [(S)-1-((R)-3-benzyloxycarbonyl-1-carbamoyl-propylcarbamoyl)-ethylcarbamoyl]-methyl ester 在
氢气 作用下,
以82%的产率得到(2S,4R,5R)-6-((R)-1,2-Dihydroxy-ethyl)-4,5-dihydroxy-tetrahydro-pyran-2-carboxylic acid [(S)-1-((R)-1-carbamoyl-3-carboxy-propylcarbamoyl)-ethylcarbamoyl]-methyl ester