[EN] BIFUNCTIONAL AND POLYFUNCTIONAL COINITIATORS IN DENTAL COMPOSITIONS<br/>[FR] CO-INITIATEURS BIFONCTIONNELS ET POLYFONCTIONNELS DANS DES COMPOSITIONS DENTAIRES
申请人:DENTSPLY DETREY GMBH
公开号:WO2020099518A1
公开(公告)日:2020-05-22
A dental composition comprising (a) a polymerizable monomer; and (b) an initiator system comprising (b-1) a sensitizer or an oxidizing agent of a redox initiator system; and (b-2) a coinitiator of the following formula (I): Q-X (I) wherein Q and X are as defined in claim 1.
Development of an S<sub>N</sub>Ar Reaction: A Practical and Scalable Strategy To Sequester and Remove HF
作者:A. John Blacker、Gabriel Moran-Malagon、Lyn Powell、William Reynolds、Rebecca Stones、Michael R. Chapman
DOI:10.1021/acs.oprd.8b00090
日期:2018.9.21
simple and operationally practical method to sequester and remove fluoride generated through the SNAr reaction between amines and aryl fluorides is reported. Calcium propionate acts as an inexpensive and environmentally benign in situ scrubber of the hydrofluoricacid byproduct, which is simply precipitated and filtered from the reaction mixture during standard aqueous workup. The method has been tested
报道了一种简单且操作上可行的方法,用于隔离和去除通过胺与芳基氟化物之间的S N Ar反应生成的氟化物。丙酸钙可作为氢氟酸副产物的廉价且对环境无害的原地洗涤器,在标准的水后处理过程中,氢氟酸副产物可以简单地从反应混合物中沉淀出来并过滤掉。该方法已在10到100 g的操作规模上进行了测试,显示在每种情况下氟化物含量均降低> 99.5%。两种规模的氟化钙都得到了全面的回收,这证明这是一种通用,有效且健壮的氟化物提取方法,有助于防止搪玻璃反应堆腐蚀。
BIFUNCTIONAL AND POLYFUNCTIONAL COINITIATORS IN DENTAL COMPOSITIONS
申请人:Dentsply DeTrey GmbH
公开号:EP3653194A1
公开(公告)日:2020-05-20
A dental composition comprising
(a) a polymerizable monomer; and
(b) an initiator system comprising
(b-1) a sensitizer or an oxidizing agent of a redox initiator system; and
(b-2) a coinitiator of the following formula (I):
Q-X (I)
wherein Q and X are as defined in claim 1.p
Piperazine-linked bisbenzamidines: a novel class of antileishmanial agents
作者:Annie Mayence、Jean Jacques Vanden Eynde、Louis LeCour、Larry A. Walker、Babu L. Tekwani、Tien L. Huang
DOI:10.1016/j.ejmech.2004.01.009
日期:2004.6
A series of 13 1,4-diarylpiperazines has been prepared, evaluated for antileishmanial activity and their binding affinity to DNA was measured. Among these compounds, 1,4-bis[4-(1H-benzimidazol-2-yl)phenyl]piperazine (14) emerged as the most active compound with an IC50 value of 0.41 muM which is about sevenfold more potent than pentamidine. (C) 2004 Elsevier SAS. All rights reserved.
Parallel Solution-Phase Synthesis of Conformationally Restricted Congeners of Pentamidine and Evaluation of Their Antiplasmodial Activities
作者:Annie Mayence、Jean Jacques Vanden Eynde、Fran M. Krogstad、Donald J. Krogstad、Melanie T. Cushion、Tien L. Huang
DOI:10.1021/jm030545e
日期:2004.5.1
Conformationally restricted bisbenzamidines and related congeners have been synthesized and evaluated for activity against two Plasmodium falciparum strains. The most active compounds, bisbenzamidines linked by a 1,4-piperazinediyl core, had IC50 values between 3 and 18 nM against both chloroquine-susceptible and -resistant parasites and IC50 values for cytotoxicity greater than 5 muM, using the A549 human lung epithelial cell line. DNA binding affinity, as estimated by DeltaT(m), did not correlate with either antiparasite effects or cytotoxicity. Each of the active bisbenzamidines interfered with the formation of hemozoin in cell-free systems.