...50% of administration ortho- and para-toluenesulfonamides excreted in urine had been metabolized to ortho- and para-sulfamoylbenzoic acids, respectively.
In female Wistar rats given single oral doses of 20, 125 or 200 mg/kg bw (14)C-orthotoluenesulfonamide, 79, 58 and 36% of the activity was recovered in 24 hr urine samples ... . The main metabolites in the urine were 2-sulfamoylbenzyl alcohol and its sulfate or glucuronic acid conjugates (80%), N-acetyltoluene-2-sulfonamide (6%), saccharin (3%) and 2-sulfamoylbenzoic acid (2%).
... After a single dose of 300 mg/kg bw of (35)S o-toluenesulfonamide to male Wistar rats ... . Approximately 50% of metabolites excreted in urine were o-sulfamoylbenzoic acid, while the compound excreted in feces was unchanged.
Low oral doses of 0.2-0.4 mg/kg bw (14)C-ortho-toluenesulfonamide were excreted more slowly in humans than in rats ... . The main urinary metabolites were 2-sulfamoylbenzoyl alcohol (unconjugated, 7%; conjugated with glucuronic acid, 11%; conjugated with sulfate, 20%), saccharin (35%) 2-sulfanoylbenzoic acid (4%) and N-acetyltoluene-2-sulfonamide (2%).
IDENTIFICATION AND USE: o-Toluenesulfonamide is a solid. It is used in the manufacture of saccharin. It is also used as a carrier in fluorescent pigments. The ortho- and para-toluenesulfonamide mixture is used as a reactive plasticizer in hot-melt adhesives to improve the flow properties of thermosetting resins and to impart flexibility to coatings based on resins made from casein, shellac, zein and soya protein. HUMAN STUDIES: There are no data available. ANIMAL STUDIES: Rats (5 animals/sex/group) were administered by gavage with o-toluenesulfonamide at single doses of 0, 700, 1,000, 1,400 and 2,000 mg/kg bw. Three females given 1,400 mg/kg bw and two females given 2,000 mg/kg bw were found dead, but there were no death in males at any dose. Sedation, passivity, catalepsy and prostration appeared even at the lowest dose of 700 mg/kg bw. Lateral position, abnormal breathing and hypothermia were also found in both sexes of the higher dosing groups. Three groups of female rats were given pure ortho-toluenesulfonamide at a concentration of 0 or 0.1% in the drinking-water or 79 mg/kg bw in the diet for two years. The survival rates were similar in all groups at 84 weeks. No difference in overall tumor incidence was observed between control and test groups. No bladder tumors were observed in any group. o-Toluenesulfonamide was administered to rats by gavage at doses of 0, 20, 100 and 500 mg/kg b.w. from 14 days before mating to 14 days after mating in males and from 14 days before mating to day 3 of lactation in females. There were signs of maternal toxicity. In the 500 mg/kg bw group, the delivery index, number of pups alive on day 0 of lactation, and birth index were slightly decreased but not statistically significant. There was no effect of the test compound on the ovulation, copulation, fertility, delivery and lactation at dose levels up to 100 mg/kg bw. Significant reduction in body weights of pups was observed on days 0 and 4 in both sexes at 500 mg/kg bw. o-Toluenesulfonamide exhibited weak mutagenic effects in a modified Salmonella/microsome test and in Drosophila.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
暴露途径
该物质可以通过摄入被身体吸收。
The substance can be absorbed into the body by ingestion.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
眼睛症状
红斑。疼痛。
Redness. Pain.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
副作用
职业性肝毒素 - 第二性肝毒素:在职业环境中的毒性效应潜力是基于人类摄入或动物实验的中毒案例。
Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.
来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
The importance of the contaminant ortho-toluene sulfonamide (OTS) in the promoting activity of commercial saccharin on rat bladder neoplasia was investigated. OTS, OTS-free and OTS-contaminated saccharin were administered in the drinking water or diet for 2 years to groups of rats pretreated with an intravesical instillation of N-methyl-N-nitrosourea (MNU); OTS alone and OTS-free saccharin were also given to groups of rats not pretreated with MNU. Administration of OTS was not associated with changes in urinary pH, crystalluria or calculus formation, had no effect on the histology of normal rat bladder, and did not increase the incidence of bladder hyperplasia or neoplasia elicited by pretreatment with MNU. No differences could be found between the effect of OTS-free or OTS-contaminated saccharin on bladders of rats pretreated with MNU. These results indicate that OTS contamination played no part in the reported promoting activity of saccharin on the rat bladder. Administration of saccharin did not increase urinary pH, crystalluria or calculus formation, and failed to promote bladder neoplasia after a carcinogenic dose of MNU, though the numbers of proliferative lesions in the bladder were increased.
... After a single dose of 300 mg/kg bw of (35)S o-toluenesulfonamide to male Wistar rats, the radioactivity was recovered about 85% in urine and about 10% in feces mostly within 48 hr.
In female Wistar rats given single oral doses of 20, 125 or 200 mg/kg bw (14)C-orthotoluenesulfonamide, 79, 58 and 36% of the activity was recovered in 24 hr urine samples; elimination at 24-48 hr was 7, 14 and 33% of the dose, respectively. Within seven days, 4.5, 5.9 and 7% of the activity was recovered from the feces. ...
Low oral doses of 0.2-0.4 mg/kg bw (14)C-ortho-toluenesulfonamide were excreted more slowly in humans than in rats, an average of 56% of the activity being excreted in the urine within 24 hr and almost 90% within 48 hr. Less than 1% of the activity was found in feces.
A Robust Process for an mGluR5 Negative Allosteric Modulator: Difluoromethylation and Sonogashira Coupling on Large Scale
摘要:
The development of the potent and selective mGluR5 negative allosteric modulator (NAM) 1 is described. Key features in the process, which has been implemented on a multikilogram scale, include a high-temperature difluoromethylation reaction, a Sonogashira coupling, and careful control of residual Pd and Cu in the final API. Due to the relative nonpolar nature of the intermediates, water-miscible solvents were employed in all four steps to allow for direct crystallizations upon reaction completion. In addition, several crystalline morphologies of the API were discovered, and the isolation of the desired form II will be discussed.
A general iodine-mediated synthesis of primary sulfonamides from thiols and aqueous ammonia
作者:Jian-Bo Feng、Xiao-Feng Wu
DOI:10.1039/c6ob01301e
日期:——
A general and efficient methodology for preparing primary sulfonamides has been developed. In the presence of iodine as the catalyst and TBHP (70% in water) as the oxidant, a wide range of primary sulfonamides were prepared from the corresponding thiols and aqueousammonia in moderate to good yields.
Synthesis of Sulfonyl Azides via Diazotransfer using an Imidazole-1-sulfonyl Azide Salt: Scope and <sup>15</sup>N NMR Labeling Experiments
作者:Marc Y. Stevens、Rajiv T. Sawant、Luke R. Odell
DOI:10.1021/jo500553q
日期:2014.6.6
Imidazole-1-sulfonyl azide hydrogen sulfate is presented as an efficient reagent for the synthesis of sulfonyl azides from primary sulfonamides. The described method is experimentally simple and high-yielding and does not require the addition of Cu salts. Furthermore, 15N NMR mechanistic studies show the reaction proceeds via a diazo transfer mechanism. Imidazole-1-sulfonyl azide hydrogen sulfate provides
咪唑-1-磺酰基叠氮化物硫酸氢盐被认为是由伯磺酰胺合成磺酰基叠氮化物的有效试剂。所描述的方法在实验上简单且产率高,并且不需要添加铜盐。此外,15 N NMR机理研究表明反应是通过重氮转移机理进行的。就冲击稳定性,成本和易于使用而言,咪唑-1-磺酰基叠氮化物硫酸氢盐与现有的重氮转移试剂相比具有明显的优势。
SUBSTITUTED INDOLES
申请人:Gant Thomas G.
公开号:US20090191183A1
公开(公告)日:2009-07-30
Disclosed herein are substituted indole cysteinyl leukotriene receptor modulators of Formula I, process of preparation thereof, pharmaceutical compositions thereof, and methods of use thereof.
[EN] PRMT5 INHIBITORS CONTAINING A DIHYDRO- OR TETRAHYDROISOQUINOLINE AND USES THEREOF<br/>[FR] INHIBITEURS DE LA PRMT5 CONTENANT UNE DIHYDRO- OU TÉTRAHYDRO-ISOQUINOLÉINE ET LEURS UTILISATIONS
申请人:EPIZYME INC
公开号:WO2014100730A1
公开(公告)日:2014-06-26
Described herein are compounds of Formula (A), pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof. Compounds of the present invention are useful for inhibiting PRMT5 activity. Methods of using the compounds for treating PRMT5- mediated disorders are also described.
[EN] NEUROACTIVE STEROIDS, COMPOSITIONS, AND USES THEREOF<br/>[FR] STÉROÏDES NEUROACTIFS, COMPOSITIONS ET UTILISATIONS
申请人:SAGE THERAPEUTICS INC
公开号:WO2015027227A1
公开(公告)日:2015-02-26
Described herein are neuroactive steroids of the Formula (I): or a pharmaceutically acceptable salt thereof; wherein -------, R1, R2, R5, A and L are as defined herein. Such compounds are envisioned, in certain embodiments, to behave as GABA modulators. The present invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of use and treatment, e.g., such for inducing sedation and/or anesthesia.