Synthesis of 7,13-bridged arachidonic acid analogues
作者:K. C. Nicolaou、Stephen Webber
DOI:10.1039/c39840000350
日期:——
cis- and trans-7,13-Bridged arachidonicacids (2 and 3, RH) and their 5,6,14,15-tetradehydro-analogues (4 and 5, R H) have been synthesized employing a divinylcyclopropane rearrangement as a key step.
Caged Cyclopropenes with Improved Tetrazine Ligation Kinetics
作者:Pratik Kumar、Omar Zainul、Frank M. Camarda、Ting Jiang、John A. Mannone、Wei Huang、Scott T. Laughlin
DOI:10.1021/acs.orglett.9b01177
日期:2019.5.17
Activatable cyclopropenes are unreactive toward their inverse electron demand Diels-Alder reaction partner (e.g., s-tetrazines) until they are activated. The activation strategy is highly modular due to the cyclopropene's ability to be caged by various light- and enzyme-activatable groups. This work describes the next generation of activatable cyclopropenes with a new core scaffold that maintains the activation modularity of the first generation but improves upon the ligation kinetics with s-tetrazines by <= 270-fold.
Lipidated cyclopropenes via a stable 3-N spirocyclopropene scaffold
作者:Pratik Kumar、Ting Jiang、Omar Zainul、Alyssa N. Preston、Sining Li、Joshua D. Farr、Pavit Suri、Scott T. Laughlin
DOI:10.1016/j.tetlet.2018.08.010
日期:2018.9
Lipidated cyclopropenes serve as useful bioorthogonal reagents for imaging cell membranes due to the cyclopropene's small size and ability to ligate with pro-fluorescent tetrazines. Previously, the lipidation of cyclopropenes required modification at the C3 position because methods to append lipids at C1/C2 were not available. Herein, we describe C1/C2 lipidation with the biologically active lipid ceramide and a common phospholipid using a cyclopropene scaffold whose reactivity with 1,2,4,5-tetrazines has been caged. (C) 2018 Elsevier Ltd. All rights reserved.
[EN] COMPOSITIONS AND METHODS FOR MODULAR CONTROL OF BIOORTHOGONAL LIGATION<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR LE CONTRÔLE MODULAIRE D'UNE LIGATURE BIO-ORTHOGONALE
申请人:UNIV NEW YORK STATE RES FOUND
公开号:WO2020113077A9
公开(公告)日:2020-08-13
CHELATING COMPOUNDS AND IMMOBILIZED TETHERED CHELATORS
申请人:Yokel Robert A.
公开号:US20110168636A1
公开(公告)日:2011-07-14
Methods are described for removing aluminum from a solution using novel di- and tripodal compounds as chelators.