Combinations of lipid modulating agents and substituted azetidinones and treatments for vascular conditions
申请人:Graziano P. Michael
公开号:US20050096307A1
公开(公告)日:2005-05-05
The present invention provides compositions, therapeutic combinations and methods including: (a) at least one lipid modulating agent; and (b) at least one substituted azetidinone or substituted β-lactam sterol absorption inhibitor which can be useful for treating vascular conditions, diabetes, obesity and lowering plasma levels of sterols or 5α-stanols.
PROCESSES FOR PREPARING INTERMEDIATE COMPOUNDS USEFUL FOR THE PREPARATION OF EZETIMIBE
申请人:Gavalda I Escude Ana
公开号:US20090227786A1
公开(公告)日:2009-09-10
The invention relates, in general, to an improved process for the preparation of the compounds (3R,4S)-4-(4-(benzyloxy)phenyl)-1-(4-fluorophenyl)-3-[3-(4-fluorophenyl)-3-oxopropyl]azetidin-2-one and (3R,4S)-1-(4-fluorophenyl)-3-[3-(4-fluorophenyl)-3-oxopropyl]-4-(4-hydroxyphenyl)-azetidin-2-one, which are key intermediates for the synthesis of ezetimibe, as well as the use of these intermediates for the preparation of ezetimibe.
PROCESSES FOR PREPARING EZETIMIBE AND INTERMEDIATE COMPOUNDS USEFUL FOR THE PREPARATION THEREOF
申请人:Escude Ana Gavalda
公开号:US20100168414A1
公开(公告)日:2010-07-01
The invention relates, in general, to an improved process for converting compounds of Formula II (below) to compounds of Formula III (below), which are key intermediates for the synthesis of ezetimibe, or to ezetimibe itself, wherein in Formulas II and III, R represents hydrogen, alkyl, or a hydroxyl protecting group (e.g., benzyl group, a substituted benzyl group, or a silyl group). The invention further includes the use of the described process and the use of compounds of Formula III made by the described process for the preparation of ezetimibe.
[EN] PROCESS FOR PREPARING PURE ALLYL PROTECTED KETO DERIVATIVE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN DÉRIVÉ CÉTONIQUE PROTÉGÉ PAR UN ALLYLE PUR
申请人:IND-SWIFT LABORATORIES LTD
公开号:WO2017168438A1
公开(公告)日:2017-10-05
The present invention provides an industrially advantageous process for the preparation of pure allyl protected keto derivative of formula I, an intermediate of ezetimibe. by using a novel O-allyl amide derivative of formula II. wherein R is methyl or ethyl
An Improved and Scalable Process for the Synthesis of Ezetimibe: An Antihypercholesterolemia Drug
作者:C. H. V. A. Sasikala、Pratap Reddy Padi、Vishnuvardhan Sunkara、Pattabhi Ramayya、P. K. Dubey、Venkata Bhaskar Rao Uppala、Cherukupally Praveen
DOI:10.1021/op900039z
日期:2009.9.18
β-lactam ring, and the chiral oxazaborolidine chemistry was used to fix the hydroxyl group stereochemistry. The synthesis significantly lowers the cost and provides easy access to ezetimibe on large scale.