[EN] (2S,4S)-4-FLUORO-1-[4-FLUORO-BETA-(4-FLUOROPHENYL)-L-PHENYLALANYL]-2-PYRROLIDINECARBONITRILE P-TOLUENESULFONIC ACID SALT AND ANHYDROUS CRYSTALLINE FORMS THEREOF [FR] SEL D'ACIDE (2S,4S)-4-FLUORO-1-[4-FLUORO-BETA-(4-FLUOROPHENYL)-1-PHENYLALANYL]-2-PYRROLIDINECARBONITRILE P-TOLUENESULFONIQUE, ET CERTAINES DE SES FORMES CRRISTALLINES ANHYDRES
[EN] (2S,4S)-4-FLUORO-1-[4-FLUORO-BETA-(4-FLUOROPHENYL)-L-PHENYLALANYL]-2-PYRROLIDINECARBONITRILE P-TOLUENESULFONIC ACID SALT AND ANHYDROUS CRYSTALLINE FORMS THEREOF [FR] SEL D'ACIDE (2S,4S)-4-FLUORO-1-[4-FLUORO-BETA-(4-FLUOROPHENYL)-1-PHENYLALANYL]-2-PYRROLIDINECARBONITRILE P-TOLUENESULFONIQUE, ET CERTAINES DE SES FORMES CRRISTALLINES ANHYDRES
Development of a Practical Large-Scale Synthesis of Denagliptin Tosylate
作者:Daniel E. Patterson、Jeremiah D. Powers、Michael LeBlanc、Tyler Sharkey、Emily Boehler、Erwin Irdam、Martin H. Osterhout
DOI:10.1021/op900178d
日期:2009.9.18
A large-scalesynthesis of denagliptin tosylate has been developed. The efficiency of the synthesis has been improved from the initially scaled route by changing the order of steps (performing a dehydration at a late stage). The key step of the synthesis is a single-step peptide coupling/dehydration, mediated by n-propanephosphonic acid cyclic anhydride. The challenges of developing this synthesis into
Fluoropyrrolidines as dipeptidyl peptidase inhibitors
申请人:——
公开号:US20040171848A1
公开(公告)日:2004-09-02
The present invention relates to novel compounds, their use for inhibiting serine proteases, such as dipeptidyl peptidases, such as dipeptidyl peptidase IV (DPP-IV) and to methods for their production and their therapeutic utility.
(2S,4s)-4-fluoro-1-[4-fluoro-beta-(4-fluorophenyl)-I-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt and anhydrous crystalline forms thereof
申请人:Igo H David
公开号:US20070066677A1
公开(公告)日:2007-03-22
The present invention includes anhydrous crystalline forms of (2S,4S)-4-fluoro-1-[4-fluoro-β-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt.
(2S,4S)-4-fluoro-1-[4-fluoro-beta-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt and anhydrous crystalline forms thereof
申请人:SmithKline Beecham Corporation
公开号:US07462641B2
公开(公告)日:2008-12-09
The present invention includes anhydrous crystalline forms of (2S,4S)-4-fluoro-1-[4-fluoro-β-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt.