Synthesis of N-(2-[18F]fluoroethyl)-N′-methylthiourea: a hydrogen peroxide scavenger
摘要:
N-(2-[F-18]fluoroethyl)-N'-methylthiourea ([F-18]FEMTU), a fluorine-18 labelled derivative of the hydrogen peroxide scavenger dimethylthiourea (DMTU), has been synthesized by reaction of 2-[F-18]fluoroethylamine with methylisothiocyanate. 2-[F-18]Fluoroethylamine was obtained in modest radiochemical yields (39+/-6%, mean+/-sd, n=5, decay corrected) by nucleophilic substitution with [F-18]fluoride on N-[2(p-toluenesulfonyloxy)ethyl] phthalimide followed by deprotection with hydrazine and distillation.The distilled 2-[F-18]fluoroethylamine was trapped in CH2Cl2 and reacted with methylisothiocyanate to yield [F-18]FEMTU that was purified by reversed phase HPLC. The total synthesis takes 150 min and provides [F-18]FEMTU with a specific activity of 3.3+0.5 GBq/mu mol (mean+/-sd, n=3) at end of synthesis, with an overall decay corrected radiochemical yield of 25+/-8% (mean+/-sd, n=5).
[EN] TARGETING COMPOUNDS<br/>[FR] COMPOSÉS DE CIBLAGE
申请人:ZAFGEN INC
公开号:WO2019118612A1
公开(公告)日:2019-06-20
The disclosure provides, at least in part, liver, intestine and/or kidney-targeting compounds and their use in treating liver, intestine and/or kidney disorders, such as non-alcoholic steatohepatitis, alcoholic steatohepatitis, hepatocellular carcinoma, liver cirrhosis, and hepatitis B; and/or chronic kidney disease, glomerular disease such as IGA nephropathy, lupus nephritis, or polycystic kidney disease. The compounds are contemplated to have activity against methionyl aminopeptidase 2.
[EN] ARYL, HETEROARY, AND HETEROCYCLIC PHARMACEUTICAL COMPOUNDS FOR TREATMENT OF MEDICAL DISORDERS<br/>[FR] COMPOSÉS PHARMACEUTIQUES ARYLE, HÉTÉROARYLES ET HÉTÉROCYCLIQUES POUR LE TRAITEMENT DE TROUBLES MÉDICAUX
申请人:ACHILLION PHARMACEUTICALS INC
公开号:WO2018160889A1
公开(公告)日:2018-09-07
Complement Factor D inhibitors, pharmaceutical compositions, and uses thereof, as well as processes for their manufacture are provided. The compounds provided include Formula I, Formula II, Formula III, Formula IV, and Formula V, or a pharmaceutically acceptable salt, prodrug, isotopic analog, N-oxide, or isolated isomer thereof, optionally in a pharmaceutically acceptable composition. The inhibitors described herein target Factor D and inhibit or regulate the complement cascade.
The disclosure generally relates to the novel compounds of formula I, including their salts, which inhibit HIV integrase and prevent viral integration into human DNA. This action makes the compounds useful for treating HIV infection and AIDS. The invention also encompasses pharmaceutical compositions and methods for treating those infected with HIV.
[EN] CYCLIC IMINOPYRIMIDINE DERIVATIVES AS KINASE INHIBITORS<br/>[FR] DÉRIVÉS D'IMINOPYRIMIDINE CYCLIQUES UTILISÉS EN TANT QU'INHIBITEURS DE KINASES
申请人:ABM THERAPEUTICS INC
公开号:WO2019060611A1
公开(公告)日:2019-03-28
Provided are cyclic iminopyridimdine compounds and their bicyclic derivatives, pharmaceutical compositions comprising such compounds, and methods of using such compounds or compositions, such as methods of treating a proliferation disorder, such as a cancer or a tumor, or in some embodiments disease or disorders related to the dysregulation of kinase such as, but not limited to B-Raf V600E kinase.
C-Terminal18F-fluoroethylamidation exemplified on [Gly-OH9] oxytocin
作者:M. Jelinski、K. Hamacher、H. H. Coenen
DOI:10.1002/jlcr.547
日期:2002.3.15
in presence of TBTU yielded ⩾90% of the 18F-fluoroethyl-amidated tripeptide. TBTU-mediated condensation of n.c.a. 2-[18F]fluoro-ethylamine with the C-terminal free acid group of protected oxytocin gave the radiochemical yield of about 75%. Deprotection under acidic conditions led to the formation of [Gly–(2-[18F]fluoroethyl)NH9]oxytocin within 75 min with a radiochemical yield of about 30% as measured