Method for preparing aspartylcyclohexyla laninamide
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.