After 0.1 mmol 1-naphthol injected into intestinal loops (rat in vivo), 70-90% in intestinal venous blood was present as 1-naphthol glucuronide. For 1.0 and 2.0 mmol injections, proportion of 1-naphthol present as 1-naphthol glucuronide was 25-50%.
来源:Hazardous Substances Data Bank (HSDB)
代谢
1-萘酚已知的人类代谢物包括1-萘基葡萄糖醛酸苷。
1-Naphthol has known human metabolites that include 1-Naphthyl glucuronide.
1-Naphthol is a cholinesterase or acetylcholinesterase (AChE) inhibitor. A cholinesterase inhibitor (or 'anticholinesterase') suppresses the action of acetylcholinesterase. Because of its essential function, chemicals that interfere with the action of acetylcholinesterase are potent neurotoxins, causing excessive salivation and eye-watering in low doses, followed by muscle spasms and ultimately death. Nerve gases and many substances used in insecticides have been shown to act by binding a serine in the active site of acetylcholine esterase, inhibiting the enzyme completely. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. The result of acetylcholine esterase inhibition is that acetylcholine builds up and continues to act so that any nerve impulses are continually transmitted and muscle contractions do not stop. Among the most common acetylcholinesterase inhibitors are phosphorus-based compounds, which are designed to bind to the active site of the enzyme. The structural requirements are a phosphorus atom bearing two lipophilic groups, a leaving group (such as a halide or thiocyanate), and a terminal oxygen.
来源:Toxin and Toxin Target Database (T3DB)
毒理性
致癌物分类
对人类无致癌性(未列入国际癌症研究机构IARC清单)。
No indication of carcinogenicity to humans (not listed by IARC).
Acute exposure to cholinesterase inhibitors can cause a cholinergic crisis characterized by severe nausea/vomiting, salivation, sweating, bradycardia, hypotension, collapse, and convulsions. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved. Accumulation of ACh at motor nerves causes overstimulation of nicotinic expression at the neuromuscular junction. When this occurs symptoms such as muscle weakness, fatigue, muscle cramps, fasciculation, and paralysis can be seen. When there is an accumulation of ACh at autonomic ganglia this causes overstimulation of nicotinic expression in the sympathetic system. Symptoms associated with this are hypertension, and hypoglycemia. Overstimulation of nicotinic acetylcholine receptors in the central nervous system, due to accumulation of ACh, results in anxiety, headache, convulsions, ataxia, depression of respiration and circulation, tremor, general weakness, and potentially coma. When there is expression of muscarinic overstimulation due to excess acetylcholine at muscarinic acetylcholine receptors symptoms of visual disturbances, tightness in chest, wheezing due to bronchoconstriction, increased bronchial secretions, increased salivation, lacrimation, sweating, peristalsis, and urination can occur. Certain reproductive effects in fertility, growth, and development for males and females have been linked specifically to organophosphate pesticide exposure. Most of the research on reproductive effects has been conducted on farmers working with pesticides and insecticdes in rural areas. In females menstrual cycle disturbances, longer pregnancies, spontaneous abortions, stillbirths, and some developmental effects in offspring have been linked to organophosphate pesticide exposure. Prenatal exposure has been linked to impaired fetal growth and development. Neurotoxic effects have also been linked to poisoning with OP pesticides causing four neurotoxic effects in humans: cholinergic syndrome, intermediate syndrome, organophosphate-induced delayed polyneuropathy (OPIDP), and chronic organophosphate-induced neuropsychiatric disorder (COPIND). These syndromes result after acute and chronic exposure to OP pesticides.
Symptoms of low dose exposure include excessive salivation and eye-watering. Acute dose symptoms include severe nausea/vomiting, salivation, sweating, bradycardia, hypotension, collapse, and convulsions. Increasing muscle weakness is a possibility and may result in death if respiratory muscles are involved. Hypertension, hypoglycemia, anxiety, headache, tremor and ataxia may also result.
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.
Nephrotoxin - The chemical is potentially toxic to the kidneys in the occupational setting.
Hemolytic anemia - Decreased hemoglobin or number of red blood cells.
来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
吸收、分配和排泄
经皮涂抹(14)C标记的1-萘醇后,尿液中(14)C的排泄表明,约50%通过人体皮肤被吸收。
Urinary excretion of (14)C following topical application of ((14)C)naphth-1-ol indicated that about 50% was absorbed percutaneously in man.
Sixty-two workers of a carbochemical plant exposed to benzene, naphthalene, toluene, o-xylene, p-xylene, phenol and pyridine were examined. In urine samples collected before and after occupational exposure significant differences in concn values of phenol (21.7-97.6 mg/l), 1-naphthol (0.1-9.38 mg/l), hippuric acid (95.5-873.9 mg/l) and m-methylhippuric acid (29.0-93.5 mg/l) were found. There was a correlation between benzene and naphthalene in the breathing zone air and phenol and 1-naphthol in the urine of coke plant workers.
Chemical exposure of assemblers handling creosote impregnated wood and of a single worker chiselling coal tar pitch layer was assessed by measuring airborne naphthalene and various polycyclic aromatic hydrocarbons, and by measurement of urinary excretion of 1-naphthol and 1-pyrenol. The sum concn polycyclic aromatic hydrocarbon and of 4-6 aromatic ring containing polycyclic aromatic hydrocarbons were high, 440 ug/cu m and 290 ug/cu m, respectively, when chiselling. In the assemblers workplace, the polycyclic aromatic hydrocarbons concn were about 1/50 of this value. Regarding airborne naphthalene concn the situation was reversed (assemblers, 1000 ug/cu m; chiseller, 160 ug/cu m). Correspondingly, the assemblers urinary 1-naphthol concn were 15-20 times higher than those of the chiseller. The urinary 1-pyrenol concn of the chiseller was 2-4 times higher than among the assemblers. As the estimated pyrene inhalation doses among the assemblers could account only for 2%-25% of the 24 hr pyrenol excretion in the urine, the skin was presumably the main route of uptake. ...
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
以每千克体重45毫克的α-萘酚经口给药,导致雄性小鼠在处理后72小时内排除了95%的给药剂量。
Oral administration of 45 mg alpha-Naphthol/kg bw resulted in 95% of the administered dose being eliminated within 72 hr after treatment in male mice.
[EN] IMIDAZOLE DERIVATIVES USEFUL AS INHIBITORS OF FAAH<br/>[FR] DÉRIVÉS IMIDAZOLE UTILES COMME INHIBITEURS DE LA FAAH
申请人:MERCK & CO INC
公开号:WO2009152025A1
公开(公告)日:2009-12-17
The present invention is directed to certain imidazole derivatives which are useful as inhibitors of Fatty Acid Amide Hydrolase (FAAH). The invention is also concerned with pharmaceutical formulations comprising these compounds as active ingredients and the use of the compounds and their formulations in the treatment of certain disorders, including osteoarthritis, rheumatoid arthritis, diabetic neuropathy, postherpetic neuralgia, skeletomuscular pain, and fibromyalgia, as well as acute pain, migraine, sleep disorder, Alzeimer Disease, and Parkinson's Disease.
[EN] PYRAZOLE DERIVATIVES USEFUL AS INHIBITORS OF FAAH<br/>[FR] DÉRIVÉS DE PYRAZOLE UTILES COMME INHIBITEURS DE FAAH
申请人:MERCK & CO INC
公开号:WO2009151991A1
公开(公告)日:2009-12-17
The present invention is directed to certain imidazole derivatives which are useful as inhibitors of Fatty Acid Amide Hydrolase (FAAH). The invention is also concerned with pharmaceutical formulations comprising these compounds as active ingredients and the use of the compounds and their formulations in the treatment of certain disorders, including osteoarthritis, rheumatoid arthritis, diabetic neuropathy, postherpetic neuralgia, skeletomuscular pain, and fibromyalgia, as well as acute pain, migraine, sleep disorder, Alzheimer disease, and Parkinson's disease
A series of phenylalkylaminoalkyl derivatives of Formula I
wherein Ar is naphtyl or phenyl;
R¹ is hydrogen, fluoro or R⁴CONH-;
R² is hydrogen or C₁-₆ alkyl;
R₃ is C₁-₆ alkyl;
R⁴ is C₁-₆ alkyl or phenyl- C₁-₆ alkyl;
x is zero or the integers 1 and 2;
m is selected from the integers 1 to 6; and
n is selected from the integers 2 and 3,
has been found to provide effective antiischemic protection for CNS tissue, particularly neurons. A method of treatment to protect against CNS ischemia, such as that resulting from trauma or stroke or other ischemic conditions, comprises administration of these novel compounds to an individual in need of such treatment.
CHLORO-PYRAZINE CARBOXAMIDE DERIVATIVES WITH EPITHELIAL SODIUM CHANNEL BLOCKING ACTIVITY
申请人:Parion Sciences, Inc.
公开号:US20140171447A1
公开(公告)日:2014-06-19
This invention provides compounds of the formula I:
and their pharmaceutically acceptable salts, useful as sodium channel blockers, compositions containing the same, therapeutic methods and uses for the same and processes for preparing the same.
Chiral 2-(2-hydroxyaryl)alcohols (HAROLs) with a 1,4-diol scaffold as a new family of ligands and organocatalysts
作者:Ömer Dilek、Mustafa A. Tezeren、Tahir Tilki、Erkan Ertürk
DOI:10.1016/j.tet.2017.11.054
日期:2018.1
Efficient and modular syntheses of chiral 2-(2-hydroxyaryl)alcohols (HAROLs), novel 1,4-diols carrying one phenolic and one alcohol hydroxyl group, have been developed which led to generation of a small library of structurally diverse HAROLs in enantiomerically pure form. Of the different HAROLs examined, a HAROL based on the indan backbone exhibited the highest activity and enantioselectivity in the
高效和模块化的手性2-(2-羟基芳基)醇(HAROLs)的合成,带有一个酚和一个醇羟基的新型1,4-二醇已被开发出来,这导致在对映异构体中生成结构多样的HAROLS小文库纯形式。在考察的不同HAROL中,基于茚满骨架的HAROL在Ti(O i Pr)4(y高达97%, 88%ee)并在三田膦的促进下在Morita-Baylis-Hillman反应中作为氢键供体有机催化剂发挥作用。