| 摘要 |
1496332α-Amino acid derivatives AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 23 Oct 1974 [23 Oct 1973 1 July 1974] 45807/74 Heading C2C [Also in Divisions C3 and A5] In Example IIA, benzyoloxycarbonyl-D-meso-α,# - diaminopimelic acid monoamide hydrochloride (c) is obtained by the action of leucine aminopeptidase on the corresponding diamide (b) made by treating with HCl and acetic acid tbutyloxycarbonyl - benzyloxycarbonyl - D - meso-α,# - diaminopimelic acid diamide (a) prepared by reacting t-benzyloxycarbonyl-D-meso-α,#-diaminopimelic acid with isobutyl chlorocarbonate and dry ammonia. The benzyl ester of benzyloxycarbonyl-D-meso-α,# - diaminopimelic acid monoamide hydrochloride (i) is made by reacting di-benzyloxycarbonyl-D-meso-α,#-diaminopimelic acid monoamide with PCl 5 and then benzyl alcohol.
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