[EN] PEPTIDOMIMETICS FOR IMAGING THE GHRELIN RECEPTOR<br/>[FR] PEPTIDOMIMÉTIQUES POUR IMAGER LE RÉCEPTEUR DE LA GHRÉLINE
申请人:LONDON HEALTH SCI CT RES INC
公开号:WO2016191865A1
公开(公告)日:2016-12-08
ABSTRACT The present invention concerns compositions comprising and methods of identification and use of imaging agents. The imaging agents comprise a growth hormone secretagogues having a conjugated fluoride. The imaging agents of the present invention may be used for detection, diagnosis and/or staging of prostate or other forms of cancer, and may also be used for cardiac disease.
Ruthenium-Catalyzed Ester Reductions Applied to Pharmaceutical Intermediates
作者:Youssef Shaalan、Lee Boulton、Craig Jamieson
DOI:10.1021/acs.oprd.0c00410
日期:2020.11.20
Ruthenium pincer complexes were synthesized and used for catalytic esterreductions under mild conditions (∼5 bar of hydrogen). An experimental design approach was used to optimize the conditions for yield, purity, and robustness. Evidence for the catalytically active ruthenium dihydride species is presented. Observed intermediates and side products, as well as time-course data, were used to build
Exhaustive Reduction of Esters, Carboxylic Acids and Carbamates to Methyl Groups Catalyzed by Boronic Acids
作者:Xuewen Guo、Yujing Zuo、Gustavo A. Alvarez、Esteban Mejía
DOI:10.1002/ejoc.202300904
日期:2023.12.6
The multi-step reduction of carboxy groups to methyl groups commonly used in organic synthesis is simplified by a new metal-free catalyst system. It uses boronic acids to catalyze the single-step reduction of esters, carboxylicacids and carbamates to methyl groups. High-yield, multifunctional product formation is achieved under mild conditions using ammonia borane as the hydrogen donor.
POLYMER COMPOSITION, CROSS-LINKED PRODUCT, AND TIRE
申请人:JSR Corporation
公开号:EP3892680A1
公开(公告)日:2021-10-13
This polymer composition includes: a modified conjugated diene-based polymer having at least one nitrogen-containing functional group selected from the group consisting of a primary amino group, a secondary amino group, a tertiary amino group, a primary amino group having been protected or converted into an onium group, a secondary amino group having been protected or converted into an onium group, and a tertiary amino group having been converted into an onium group; and a functional-group-containing polymer having at least one functional group selected from the group consisting of an epoxy group, an acid anhydride structure, an oxazoline group, a hydroxyl group, a carboxyl group, and a sulfo group.
Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agents
申请人:Ozawa Yoichi
公开号:US20060004131A1
公开(公告)日:2006-01-05
A functionalized polymer prepared by a process comprising the steps of preparing a pseudo-living polymer by polymerizing conjugated monomer with a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by the formula (I)
A-R
1
-Z (I)
where R
1
is a divalent bond or divalent organic group comprising from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R
1
, and Z are substituents that will not protonate a pseudo-living polymer.