[EN] S1P1 AGONISTS COMPRISING A BICYCLIC N-CONTAINING RING<br/>[FR] AGONISTES DE S1P1 COMPRENANT UN CYCLE AZOTÉ BICYCLIQUE
申请人:GLAXO GROUP LTD
公开号:WO2010146105A1
公开(公告)日:2010-12-23
The present invention relates to novel compounds of formula (I) having S1P1 agonist activity, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders.
S1P1 AGONISTS COMPRISING A BICYCLIC N-CONTAINING RING
申请人:Bailey James Matthew
公开号:US20120101083A1
公开(公告)日:2012-04-26
The present invention relates to novel compounds of formula (I) having S1P1 agonist activity, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders.
Enantioselective Copper-Catalyzed Borylative Amidation of Allenes
作者:Seunghwan Byun、Abdikani Omar Farah、Henry R. Wise、Andrew Katchmar、Paul H.-Y. Cheong、Karl A. Scheidt
DOI:10.1021/jacs.2c10507
日期:2022.12.21
An approach for the copper-catalyzed synthesis of enantioenriched amides bearing an α-stereogenic center is disclosed. This method involves the addition of an allyl copper species to an isocyanate and allows access to α-substituted chiral amides in high yields and high-to-excellent enantioselectivities. The utility of α-vinyl β-boryl amides in synthesis is highlighted by the diversification of products
Amine‐Carbamate Self‐Immolative Spacers Counterintuitively Release 3° Alcohol at Much Faster Rates than 1° Alcohol Payloads
作者:Mattia Mason、Lydia Bisbal Lopez、Fazel Bashiri、Aurélie Herrero、Aurélien Baron、Raffaella Bucci、Luca Pignataro、Cesare Gennari、Alberto Dal Corso
DOI:10.1002/cbic.202400174
日期:2024.4.16
Self‐immolative (SI) spacers are degradable chemical connectors widely used in prodrugs and drug conjugates to release pharmaceutical ingredients in response to specific stimuli. Amine‐carbamate SI spacers are particularly versatile, as they have been used to release different hydroxy cargos, ranging from 2° and 3° alcohols to phenols and oximes. In this work, we describe the ability of three amine‐carbamate SI spacers to release three structurally similar imidazoquinoline payloads, bearing either a 1°, a 2° or a 3° alcohol as the leaving group. While the spacers showed comparable efficacy at releasing the 2° and 3° alcohols, the liberation of the 1° alcohol was much slower, unveiling a counterintuitive trend in nucleophilic acyl substitutions. The release of the 1° alcohol payload was only possible using a SI spacer bearing a pyrrolidine ring and a tertiary amine handle, which opens the way to future applications in drug delivery systems.