THE URINARY EXCRETION OF RADIOACTIVE METABOLITES FOLLOWING THE IP ADMIN OF A RANGE OF DOSES OF 2,5-(14)C-2-LABELED N-NITROSOPYRROLIDINE TO RATS WAS EXAMINED. PYRROLIN-2-ONE WAS ONE OF SEVERAL METABOLITES IDENTIFIED.
来源:Hazardous Substances Data Bank (HSDB)
代谢
吡咯烷酮被识别为美沙酮的尿液代谢物。
PYRROLIDONE WAS IDENTIFIED AS A URINARY METABOLITE OF METHADONE.
AN ENZYME SYSTEM RESIDING IN THE SOL FRACTION OF RABBIT LIVER CATALYZES THE CONVERSION OF DELTA 1-PYRROLINE TO GAMMA-AMINOBUTYRIC ACID & ITS LACTAM, 2-PYRROLIDONE.
2-PYRROLIDONE WAS IDENTIFIED AS A METABOLITE OF (14)C-PUTRESCINE IN SLICED RAT LIVER IN VITRO. IT IS ALSO SYNTHESIZED FROM PUTRESCINE BY THE SPLEEN & LUNG, BUT NOT BY KIDNEY, BRAIN, HEART OR MUSCLE.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
暴露途径
这种物质可以通过皮肤被吸收进身体。
The substance can be absorbed into the body through the skin.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
皮肤症状
红色。
Redness.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
眼睛症状
疼痛。红肿。视力模糊。
Pain. Redness. Blurred vision.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
PYRROLIDONE ADMINISTERED BY GASTRIC GAVAGE TO RATS SHOWED LD100, LD50, & MAXIMUM TOLERABLE DOSES OF 10, 7.3 & 4 G/KG, RESPECTIVELY. TOPICAL APPLICATION TO THE EYES OF RABBITS CAUSED IRREVERSIBLE CLOUDING OF THE CORNEA.
The percutaneous absorption has been investigated in rats of a mixture (3:2, w/w) of N-methyl-2-pyrrolidinone and 2-pyrrolidinone, a combination intended for use as a vehicle in the formulation of an antimycotic drug to enhance skin penetration on dermal application, following co-administration of the two (14)C-radiolabelled compounds by the dermal and oral routes. Radioactivity was excreted predominantly in the urine after either route of administration, and comparison of the respective excretion profiles indicated that about three-quarters of the applied dose was absorbed through the skin. Plasma concentrations of each parent compound, as determined by radio-HPLC, reached peak values at 2 hr after oral dosing, and remained relatively uniform during 1-6 hr after application to the skin, suggesting constant percutaneous absorption during this period. N-Methyl-2-pyrrolidinone appeared to be absorbed through the skin more extensively and at a slightly faster rate than 2-pyrrolidinone; total percutaneous absorption tended to be more extensive in female than in male rats. Together, these two 14C-compounds accounted for most of the plasma radioactivity up to 6-8 hr post-administration. However, by 12 hr (when plasma levels were relatively low), most of the radioactivity was associated with unknown polar metabolites. In view of the extensive percutaneous absorption and little first-pass metabolism of the two pyrrolidinones, the oral route was considered to represent a valid alternative to the dermal route for the assessment of the systemic toxicity of the two compounds.
1.周国泰,化学危险品安全技术全书,化学工业出版社,1997 2.国家环保局有毒化学品管理办公室、北京化工研究院合编,化学品毒性法规环境数据手册,中国环境科学出版社.1992 3.Canadian Centre for Occupational Health and Safety,CHEMINFO Database.1998 4.Canadian Centre for Occupational Health and Safety, RTECS Database, 1989
[EN] METALLOENZYME INHIBITOR COMPOUNDS<br/>[FR] COMPOSÉS INHIBITEURS DE MÉTALLOENZYMES
申请人:VPS 3 INC
公开号:WO2018165520A1
公开(公告)日:2018-09-13
Provided are compounds having HDAC6 modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by HDAC6.
提供具有HDAC6调节活性的化合物,以及通过HDAC6介导的治疗疾病、疾病或症状的方法。
Copper-Mediated C–N Coupling of Arylsilanes with Nitrogen Nucleophiles
作者:Johannes Morstein、Eric D. Kalkman、Chen Cheng、John F. Hartwig
DOI:10.1021/acs.orglett.6b02543
日期:2016.10.21
A method for the oxidative coupling of arylsilanes with nitrogen nucleophiles is reported. This method occurs with a broad range of heptamethyltrisiloxylarenes and nitrogen nucleophiles, proceeds with the arylsilane as limiting reagent, and does not require a fluoride activator with electron-poor arylsilanes. The combination of this method with C–H silylation generates arylamines from unactivated arenes
Metal-Free Intermolecular Oxidative C–N Bond Formation via Tandem C–H and N–H Bond Functionalization
作者:Abhishek A. Kantak、Shathaverdhan Potavathri、Rose A. Barham、Kaitlyn M. Romano、Brenton DeBoef
DOI:10.1021/ja2087085
日期:2011.12.14
development of a novel intermolecular oxidative amination reaction, a synthetic transformation that involves the simultaneous functionalization of both a N-H and C-H bond, is described. The process, which is mediated by an I(III) oxidant and contains no metal catalysts, provides a rapid and green method for synthesizing protected anilines from simple arenes and phthalimide. Mechanistic investigations
4' SUBSTITUTED COMPOUNDS HAVING 5-HT6 RECEPTOR AFFINITY
申请人:Dunn Robert
公开号:US20080318941A1
公开(公告)日:2008-12-25
The present disclosure provides compounds having affinity for the 5-HT
6
receptor which are of the formula (I):
wherein R
1
, R
2
, R
5
, R
6
, B, D, E, G, Q, x and n are as defined herein. The disclosure also relates to methods of preparing such compounds, compositions containing such compounds, and methods of use thereof.
[EN] NONMUSCLE MYOSIN II INHIBITORS FOR SUBSTANCE USE RELAPSE<br/>[FR] INHIBITEURS DE MYOSINE NON MUSCULAIRE II POUR LA RECHUTE D'UTILISATION DE SUBSTANCE
申请人:SCRIPPS RESEARCH INST
公开号:WO2019241469A1
公开(公告)日:2019-12-19
The invention can provide compounds, analogs of blebbistatin, effective and selective inhibitors of nonmuscle myosin II relative to cardiac myosin II. Compounds can be used in the method of treating a disease, disorder, or medical condition in a patient, comprising modulating myosin II ATPase, such as treatment of substance abuse relapse disorder, or of renal disease, cancer and metastasis, benign prostate hyperplasia, hemostasis or thrombosis, nerve injury including retinal damage, lung fibrosis, liver fibrosis, arthrofibrosis, wound healing, spinal cord injury, periodontitis, glaucoma and immune-related diseases including multiple sclerosis; or wherein the disease, disorder, or medical condition comprises addiction including abuse of or addiction to anything classified as a Substance-Related or Addictive Disorder in the Diagnostic and Statistical Manual of Mental Disorders (DSM), such as, but not limited to, cocaine, opioids, amphetamines, ethanol, cannabis/marijuana, nicotine, and activities including gambling Compounds are of general formula (I) with substituents as defined herein.