申请人:Aventis Pharma S.A.
公开号:US06384272B2
公开(公告)日:2002-05-07
Disclosure is a method for preparing &agr;-aspartyl-&bgr;-cyclohexylalaninamide, comprising carrying out a first step of amide formation of an &agr;-aspartyl phenylamine ester of general formula (II)
wherein: R is a C1-C4 alkyl radical, and then performing a catalytic hydrogenation of the resulting &agr;-aspartyl phenylalaninamide ammonium salt, optionally released previously from its salt, and optionally transforming it into an addition acis salt.
揭示是制备&agr;-天冬氨酸-&bgr;-环己丙氨酰胺的方法,包括进行第一步的酰胺形成,该步骤涉及通式(II)中的&agr;-天冬氨酸苯胺酯,其中:R是C1-C4烷基基团,然后对所得的&agr;-天冬氨酸苯丙氨酰胺铵盐进行催化氢化,可选择性地从其盐中释放,然后可选择性地将其转化为加成酸盐。