[EN] E-SELECTIN ANTAGONISTS MODIFIED BY MACROCYCLE FORMATION TO THE GALACTOSE<br/>[FR] ANTAGONISTES D'E-SÉLECTINES MODIFIÉS PAR FORMATION DE MACROCYCLES SUR LE GALACTOSE
申请人:GLYCOMIMETICS INC
公开号:WO2015109049A1
公开(公告)日:2015-07-23
Provided herein are glycomimetic E-selectin antagonist compounds of formula (I)) and pharmaceutical compositions comprising at least one of the same. The compounds of the present disclosure include trisaccharide domain mimics comprising at least one macrocycle created through the 2nd and 3rd positions on a galactose within the mimic. Methods are also provided comprising using at least one of such compounds and compositions comprising at least one of the same to treat and/or prevent diseases and disorders treatable by inhibiting binding of an E-selectin to an E-selectin ligand.
A synthesis of C1–C22 fragment of the immunosuppressant FK 506. Stereoselective construction of (E)-trisubstituted double bond (C19–C20) via ester-enolate claisen rearrangement
An ene-ester 5 prepared from L-malic acid was subjected to the ester-enolate Claisen rearrangement under Ireland's condition to give stereoselectively C16–C22 fragment 11 containing (E) trisubstituted doublebond which was further advanced to C1–C22 fragment 2 by sequential coupling with C10–C15 and C1-C9 fragments.
E-Selectin Antagonists Modified By Macrocycle Formation to the Galactose
申请人:GLYCOMIMETICS, INC.
公开号:US20160333043A1
公开(公告)日:2016-11-17
Provided herein are glycomimetic E-selectin antagonist compounds of formula (I)) and pharmaceutical compositions comprising at least one of the same. The compounds of the present disclosure include trisaccharide domain mimics comprising at least one macrocycle created through the 2
nd
and 3
rd
positions on a galactose within the mimic. Methods are also provided comprising using at least one of such compounds and compositions comprising at least one of the same to treat and/or prevent diseases and disorders treatable by inhibiting binding of an E-selectin to an E-selectin ligand.
Stereocontrolled synthesis of C10-C22 fragment of the immunosuppressant FK 506. An occurrence of complementary stereoselectivity in the C15 ketone reduction
stereocontrolled ester-enolate Claisenrearrangement of ene-ester 5, and the aldehyde 4 which was prepared from D-mannitol via anti selective methallylsilane addition to aldehyde 6 followed by modest stereoselective hydroboration based on 1,3-asymmetric induction. In the course of this reaction sequence a complementary stereoselection dependent on the used hydride reagents has occurred in reduction of the coupling