Linker Compound, Polyethylene Glycol-Linker Conjugate and Derivative Thereof and Polyethylene Glycol-Linker-Drug Conjugate
申请人:JENKEM TECHNOLOGY CO., LTD. (TIANJIN)
公开号:US20200289655A1
公开(公告)日:2020-09-17
The disclosure discloses a linker compound, a polyethylene glycol-linker conjugate and a derivative thereof, and a polyethylene glycol-linker-drug conjugate. The linker compound as well as the conjugate thereof with the polyethylene glycol and the derivative thereof may be used for modifying a drug, and a modification reaction is simple and easy to carry out. Moreover, a reaction yield is high, and an application range of the modified drug is wide. The modified drugs gradually degrade from a chain of the conjugate in vivo, and may stay in a lesion (such as a cancer site) for a longer period of time, achieving purposes of sustained and controlled release, reducing an administration frequency, and greatly improving a bioavailability of the drug and a patient compliance.
Lubricant compositions and ether or ester of 1-hydroxybenzotriazole as
申请人:Mobil Oil Corporation
公开号:US04174285A1
公开(公告)日:1979-11-13
Lubricant compositions containing oleaginous materials and, in amounts sufficient to impart antioxidation properties thereto, additives selected from the group consisting of ethers and esters of 1-hydroxybenzotriazole.
Palladium-Catalyzed Carbonyl-Retention Suzuki–Miyaura Coupling between N-Hydroxybenzotriazole Esters and Boronic Acids
作者:Wanfang Li、Shangzhang Li、Jin Bai、Riqian Zhu
DOI:10.1055/a-1996-3244
日期:——
We have developed a palladium-catalyzed C–O bond activation of N-hydroxybenzotriazole esters, which represent a new type of electrophilic partner for Suzuki–Miyaura cross-couplingreactions to make various ketones. This reaction employed the cheap and commercially available PdCl2(MeCN)2/PCy3 as the catalyst and proceeded at 80 °C.
我们开发了一种钯催化的 N-羟基苯并三唑酯的 C-O 键活化,它代表了铃木-宫浦交叉偶联反应制备各种酮的新型亲电伙伴。该反应使用廉价且可商购的 PdCl2(MeCN)2/PCy3 作为催化剂,并在 80 °C 下进行。
3-Deoxy-3,4-dehydro analogs of XM462. Preparation and activity on sphingolipid metabolism and cell fate
作者:Luz Camacho、Fabio Simbari、Maria Garrido、José Luis Abad、Josefina Casas、Antonio Delgado、Gemma Fabriàs
DOI:10.1016/j.bmc.2012.03.073
日期:2012.5
Three analogs of the dihydroceramide desaturase inhibitor XM462 are reported. The compounds inhibit both dihydroceramide desaturase and acid ceramidase, but with different potencies depending on the N-acyl moiety. Other enzymes of sphingolipid metabolism, such as neutral ceramidase, acid sphingomyelinase, acid glucosylceramide hydrolase, sphingomyelin synthase and glucosylceramide synthase, are not affected. The effect on the sphingolipidome of the two best inhibitors, namely (R,E)-N-(1-hydroxy-4-(tridecylthio) but-3-en-2-yl)octanamide (RBM2-1B) and (R, E)-N-(1-hydroxy-4-(tridecylthio) but-3-en-2-yl) pivalamide (RBM2-1D), is in accordance with the results obtained in the enzyme assays. These two compounds reduce cell viability in A549 and HCT116 cell lines with similar potencies and both induced apoptotic cell death to similar levels than C8-Cer in HCT116 cells. The possible therapeutic implications of the activities of these compounds are discussed. (C) 2012 Elsevier Ltd. All rights reserved.