Studies on aroyl- and aryl-hydrazide derivatives from d-glycero-d-gulo-heptono-1,4-lactone
作者:Saber M. Sharaf、Mohammed A.E. Sallam、Hamdy A. El Shenawy
DOI:10.1016/s0008-6215(00)80989-1
日期:1981.4
Abstract A series of aroyl- and aryl-hydrazide derivatives was prepared from d - glycero - d - gulo -heptono-1,4-lactone ( 1 ). The reactivity of the NH proton in these hydrazides, in terms of their dissociation constants (p K a ), was determined from their electronic spectra, and correlated to the Hammett σ values of the substituents. Comparable reactivities of the NH protons for the compounds, and
摘要从d-甘油-d-gulo-heptono-1,4-内酯(1)制备了一系列芳酰和芳酰肼衍生物。根据它们的离解常数(p K a),从它们的电子光谱中确定了NH质子在这些酰肼中的反应性,并与取代基的Hammettσ值相关。通过核磁共振光谱研究了化合物的NH质子的可比反应性以及取代基的作用。芳酰肼与硫酸铜(II)或亚硝酸的分解导致1的再生。
COMPOUNDS FOR TREATING PROLIFERATIVE DISORDERS
申请人:Chen Shoujun
公开号:US20100081635A1
公开(公告)日:2010-04-01
Disclosed are compounds of formulae (I), (III), (IV), (VII), (X), (XI), (XII), (XIII) and (XIV), wherein the variabables are as defined in the claims, and methods of using compounds of the invention for treating a subject with a proliferative disorder, such as cancer, and methods for treating disorders responsive to Hsp70 induction and/or natural killer induction. Also disclosed are pharmaceutical compositions comprising compounds of the invention and a pharmaceutically acceptable carrier.
Disclosed are compounds of formulae (I), (III), (IV), (VII), (X), (XI), (XII), (XIII) and (XIV), wherein the variables are as defined in the claims, and methods of using compounds of the invention for treating a subject with a proliferative disorder, such as cancer, and methods for treating disorders responsive to Hsp70 induction and/or natural killer induction. Also disclosed are pharmaceutical compositions comprising compounds of the invention and a pharmaceutically acceptable carrier.
Chemo-enzymatic site-specific modification of peptides and proteins to form cleavable conjugates
申请人:Northeastern University
公开号:US11129790B2
公开(公告)日:2021-09-28
A method is provided for reversibly modifying a protein or peptide on its glutamine residue(s) by performing a reaction, such as a transglutaminase-catalyzed reaction, between the protein or peptide and an amine-containing reagent, whereby the reagent is linked through its amine function to a side chain of the glutamine residue. Subjecting the modified protein to an appropriate stimulus regenerates the protein or peptide in its original form.