Method for preparing aspartylcyclohexyla laninamide
申请人:——
公开号:US20010034460A1
公开(公告)日:2001-10-25
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)
1
wherein: R is a C
1
-C
4
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.
2
However, the process is fairly lengthy and expensive, since it involves starting materials, such as cyclohexylalanine and the monobenzyl ester of benzyloxycarbonylaspartic acid, which are not commercially available, in particular on an industrial scale, which starting materials have to be protected beforehand before they are employed in the process. Thus, the industrial preparation of the biologically active product is extremely laborious.
作者:HENKLEIN, P.、GEORGI, M.、LOTH, F.、DAUTZENBERG, H.
DOI:——
日期:——
PROCEDE DE PREPARATION DE L'ASPARTYL CYCLOHEXYLALANINAMIDE
申请人:Aventis Pharma S.A.
公开号:EP1084138B1
公开(公告)日:2002-01-30
Sincalide Formulations
申请人:Metcalfe Edmund C.
公开号:US20100047175A1
公开(公告)日:2010-02-25
The invention features sincalide formulations that include an effective amount of sincalide, a bulking agent/tonicity adjuster, a stabilizer, a surfactant, a chelator, and a buffer. The invention also features kits and methods for preparing improved sincalide formulations as well as methods for treating, preventing, and diagnosing gall bladder-related disorders using sincalide formulations.