Continuous Flow Synthesis of ACE Inhibitors From N‐Substituted
<scp>l</scp>
‐Alanine Derivatives
作者:Christopher P. Breen、Timothy F. Jamison
DOI:10.1002/chem.201904400
日期:2019.11.18
angiotensin converting enzyme (ACE) inhibitors is described. An optimization effort guided by in situ IR analysis resulted in a general amide coupling approach facilitated by N-carboxyanhydride (NCA) activation that was further characterized by reaction kinetics analysis in batch. The three-step continuous process was demonstrated by synthesizing 8 different ACE inhibitors in up to 88 % yield with throughputs
PROCESS FOR THE PREPARATION OF THE L-ARGININE SALT OF PERINDOPRIL
申请人:Les Laboratoires Servier
公开号:US20130178635A1
公开(公告)日:2013-07-11
Process for the preparation of the compound of formula (I):
制备式(I)化合物的过程:
PHARMACEUTICAL INTERMEDIATES IN THE SYNTHESIS OF ACE-INHIBITORS AND THE USE THEREOF
申请人:Porcs-Makkay Marta
公开号:US20100286404A1
公开(公告)日:2010-11-11
The compounds of the general Formula (I), wherein R
1
is aryl or alkyl; R
2
represents alkyl; R
3
represents alkyl or aralkyl, are valuable pharmaceutical intermediates, which can be prepared by reacting a compound of the general Formula (IV) (wherein the definitions of R
1
and R
2
are as above), with at least 2 molar equivalents of the compound of the general Formula (VI) (wherein X represents halogen or tertiary butyloxycarbonyloxy group and R
3
is as defined above). The known compounds of the general Formula (II) (wherein R
1
and R
2
are as defined above) are prepared by reacting the compounds of the general Formula (I) with thionyl chloride. The compounds of the general Formula (I) are new intermediates useful in the synthesis of pharmaceutically active ingredients, particularly in the preparation of ACE-inhibitors, e.g. enalapril, perindopril or ramipril.
[EN] METHOD FOR THE PREPARATION OF PERINDOPRIL ARGININE SALT<br/>[FR] PROCEDE DE PREPARATION DU SEL DE L-ARGININE DU PÉRINDOPRIL
申请人:SERVIER LAB
公开号:WO2013102740A1
公开(公告)日:2013-07-11
Procédé de préparation du composé de formule (I) :
制备式(I)化合物的方法:
Novel method for preparation of crystalline perindopril erbumine
申请人:Singh Pal Girij
公开号:US20070149604A1
公开(公告)日:2007-06-28
A process for preparation of crystalline perindopril erbumine of formula (II)
which exhibits the X-ray (powder) diffraction pattern like that shown in FIG.
2
The process comprises reacting a solution of perindopril of formula (I),
in a solvent selected from N,N-dimethylformamide, dimethyl acetals of lower aliphatic aldehydes, dimethyl ketals of lower aliphatic ketones and 1,2-dialkoxyethane with tertiary butylamine and crystallization of the erbumine salt thus obtained by heating the reaction mixture to reflux, filtering hot, cooling gradually to 20° C. to 30° C., and further cooling to 0° C. to 15° C. for 30 minutes to 1 hour and finally filtering off and drying the crystals.