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乙酸甲酯 | 79-20-9

中文名称
乙酸甲酯
中文别名
醋酸甲酯
英文名称
Methyl acetate
英文别名
acetic acid methyl ester;methyl ester acetic acid
乙酸甲酯化学式
CAS
79-20-9
化学式
C3H6O2
mdl
MFCD00008711
分子量
74.0794
InChiKey
KXKVLQRXCPHEJC-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    -98 °C (lit.)
  • 沸点:
    57-58 °C (lit.)
  • 密度:
    0.934 g/mL at 25 °C
  • 蒸气密度:
    2.55 (vs air)
  • 闪点:
    3.2 °F
  • 溶解度:
    250克/升
  • 最大波长(λmax):
    λ: 255 nm Amax: 1.0λ: 275 nm Amax: 0.1λ: 300 nm Amax: 0.01
  • 介电常数:
    7.3(20℃)
  • 暴露限值:
    TLV-TWA 200 ppm (~610 mg/m3) (ACGIH, MSHA, and OSHA); TLV-STEL 250 ppm (~760 mg/m3) (ACGIH); IDLH 10,000 ppm (NIOSH).
  • LogP:
    0.18 at 20℃
  • 物理描述:
    Methyl acetate appears as a clear colorless liquid with a fragrant odor. Moderately toxic. Flash point 14°F. Vapors heavier than air.
  • 颜色/状态:
    Colorless, volatile liquid
  • 气味:
    Pleasant odor
  • 味道:
    FLEETING, FRUITY TASTE
  • 蒸汽密度:
    2.8 (NTP, 1992) (Relative to Air)
  • 蒸汽压力:
    216.2 mm Hg at 25 °C
  • 亨利常数:
    1.15e-04 atm-m3/mole
  • 大气OH速率常数:
    3.41e-13 cm3/molecule*sec
  • 稳定性/保质期:
    1. 易挥发、易燃烧、易水解。蒸气与空气形成爆炸性混合物,爆炸极限为4.1%~14.0%(体积),低毒,高浓度时有麻醉作用。干燥时对金属无腐蚀性,但不宜使用铜制容器,因乙酸甲酯容易水解产生的游离乙酸对铜有腐蚀性。回收或久贮的乙酸甲酯在使用前应检查其酸度。接触其蒸气时,应佩戴自吸过滤式防毒面具(半面罩),操作人员需穿防静电工作服,并戴橡胶手套,工作现场严禁吸烟。注意个人清洁卫生。 2. 化学性质:乙酸甲酯容易水解,在常温下与水长时间接触也会水解生成乙酸而呈酸性。高温加热时分解成乙醛和甲醛,进一步可分解为甲烷、一氧化碳和氢。卤素,尤其是碘,对分解有促进作用。在镍存在下,150℃以下不发生分解,超过150℃则分解成甲烷、一氧化碳和水。使用铜、银、钼等金属或其氧化物作为催化剂并与空气一同加热时,分解成甲醛与乙酸。紫外线照射可使乙酸甲酯分解为甲醇、丙酮、联乙酰、乙烷、甲烷、氢、一氧化碳和二氧化碳等。在光作用下与氯反应生成氯代乙酸甲酯。在甲醇钠存在下,于57~80℃自行缩合生成乙酰乙酸甲酯。 3. 乙酸甲酯能与某些盐类如三氟化硼、三氯化铝、三氯化铁和氯化镍形成复合物,并且也能与氯化钙形成结晶性复合物,因此氯化钙不宜用作乙酸甲酯的干燥剂。 4. 乙酸甲酯是纤维素酯、纤维素醚、尿素树脂、蜜胺树脂、乙烯基树脂及酚醛树脂等优良溶剂,但不能溶解虫胶和香豆酮树脂。它能溶解氯化铜、碘化镉、氯化汞、氯化铁和氯化钴等,但不溶解氯化钾、氯化钠和硫酸钠等。常温下在水中可溶解24%,而水在乙酸甲酯中仅能溶解8%。 5. 稳定性:稳定 6. 禁配物:强氧化剂、碱类及各类酸类 7. 聚合危害:不聚合
  • 自燃温度:
    850 °F (454 °C)
  • 分解:
    Decomposes in heat; on contact with air, bases, strong oxidizers, UV-light, casuing fire and explosion hazard.
  • 粘度:
    0.364 mPa.s at 25 °C
  • 燃烧热:
    5,150 cal/g = 9,260 BTU/lb = 215X10+5 J/kg
  • 汽化热:
    32.29 kJ/mol at 25 °C
  • 表面张力:
    24.73 mN/m at 25 °C
  • 电离电位:
    10.27 eV
  • 气味阈值:
    WATER: 3.0 MG/L; AIR: 4.6 UL/L; ODOR SAFETY CLASS B; B= 50-90% OF DISTRACTED PERSONS PERCEIVE WARNING OF TLV
  • 折光率:
    Index of refraction: 1.3614 at 20 °C/D
  • 保留指数:
    517.2;506;511;511;521.3;516.7;501.15;511.5;513.8;515.7;520.6;521;521.3;526.2;505;505;505;505;509;560;525.9;509;509;509;505;506;510;512;513;513;509;507;510;511;512;509;513;519.3;515;509;511;556.4;512;510;507;512;513;508;508;513;519;509;513;524

计算性质

  • 辛醇/水分配系数(LogP):
    0.2
  • 重原子数:
    5
  • 可旋转键数:
    1
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.666
  • 拓扑面积:
    26.3
  • 氢给体数:
    0
  • 氢受体数:
    2

ADMET

代谢
经口服暴露后,甲基乙酸盐在胃肠道中被胃粘膜的酯酶部分裂解成甲醇和醋酸。该酯还会被血液中的酯酶进一步水解。同样,在大鼠吸入浓度为2,000 ppm(6,040 mg/立方米)的甲基乙酸盐后,测定的血液浓度低于4.6 mg/L。 ... 在饱和条件下的吸入暴露会导致血液中出现甲基乙酸盐。
After oral exposure methyl acetate is partially cleaved in the gastrointestinal tract into methanol and acetic acid by esterases of the gastric mucosa. The ester is furthermore hydrolysed by esterases of the blood. Similarly, after inhalation exposure of rats to a concentration of 2,000 ppm (6,040 mg/cu m) blood concentrations less than 4.6 mg/L were determined. ... Inhalation exposure at saturation conditions results in the occurrence of methyl acetate in blood.
来源:Hazardous Substances Data Bank (HSDB)
代谢
甲基乙酸的生物转化通过血液和组织中的非特异性羧酸酯酶迅速将化合物水解为甲醇和乙酸。
... Biotransformation of methyl acetate takes place by rapid hydrolysis of the compound into methanol and acetic acid by the nonspecific carboxylic esterases in the blood and tissues. ...
来源:Hazardous Substances Data Bank (HSDB)
代谢
使用人类受试者已经证明,甲基乙酯通过代谢水解转化为甲醇和乙酸的进程与暴露水平成正比。
... With human subjects /it has been shown/ that metabolic hydrolysis of methyl acetate to methanol and acetic acid proceeds directly proportional to exposure level.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 毒性总结
识别和使用:乙酸甲酯是一种无色、挥发性液体,用作硝化纤维素、醋酸纤维素溶剂;在许多树脂和油类中以及在制造人造皮革时使用。它还用于油漆去除剂、漆溶剂、中间体和合成香料。人类暴露和毒性:该蒸汽对眼睛和呼吸系统有轻微刺激性,在高浓度下可引起中枢神经系统抑制。一名人类意外暴露于乙酸甲酯蒸汽45分钟,结果出现严重头痛和持续约6小时的嗜睡。在另一份病例报告中,一名少女吸入漆稀释剂中的蒸汽后出现急性失明。确定甲醇和乙酸甲酯蒸汽导致视神经病变,最终导致失明。在高浓度下,乙酸甲酯可能通过摄入、吸入或可能的皮肤接触导致轻度至重度甲醇中毒。动物研究:4只大鼠吸入饱和的乙酸甲酯气氛(在25升瓶中)后10至20分钟内出现麻醉效果。在这个时间点进行断头处理后,在血液中发现了70-80毫克/100毫升的乙酸甲酯。类似的实验中,吸入甲醇蒸汽表明,麻醉效果主要是由乙酸甲酯引起的。暴露于10,560 ppm乙酸甲酯蒸汽的猫出现眼睛刺激和流涎。大鼠暴露于含有乙酸甲酯(12.6%)的稀释剂中,在塑料容器中以10,000 ppm的浓度在环境空气中,每次10分钟,每天两次,每周6天,持续12-14个月。与对照组相比,体重增加受到抑制。对大脑皮层切片的电子显微镜检查显示神经元和轴突的线粒体内异常嵴增加,内质网和核糖体数量增加,高尔基体扩张。在神经元中观察到增多的溶酶体和脂质物质,提示有退行性过程。乙酸甲酯在缺乏或存在代谢激活的情况下,没有在鼠伤寒沙门氏菌TA 98、TA 100、TA 1535、TA 1537和TA 1538以及大肠杆菌WP2uvrA中产生回复突变体的增加,测试浓度为5,000微克/平板。在使用鼠伤寒沙门氏菌TA97、TA98、TA100、TA1535和TA1538进行的一项研究中,无论是否加入代谢激活系统,测试结果均为阴性,测试浓度为10,000微克/平板。这项研究采用了20分钟的预培养期。乙酸甲酯的生物转化通过血液和组织中的非特异性羧酸酯酶快速将化合物水解为甲醇和乙酸。
IDENTIFICATION AND USE: Methyl Acetate is a colorless, volatile liquid, which is used as a solvent for nitrocellulose, acetylcellulose; in many resins and oils and in the manufacture of artificial leather. It is also used in paint remover compounds, lacquer solvent, intermediate, and synthetic flavoring. HUMAN EXPOSURE AND TOXICITY: The vapor is mild irritant to the eyes and respiratory system and at high concentrations can cause CNS depression. Accidental human exposure to methyl acetate vapor for 45 minutes resulted in severe headache and somnolence lasting about 6 hr. In another case report, a teenage girl experienced acute blindness following inhalation of vapor from lacquer thinner. It was determined that methanol and methyl acetate vapors caused optic neuropathy that led to the blindness. At high concentrations, methyl acetate may cause mild to severe methanol intoxication from ingestion, inhalation, or possible skin contact. ANIMAL STUDIES: Inhalation exposure of 4 rats to a saturated atmosphere of methyl acetate (in 25 L bottles) induced narcotic effects in the animals after 10 to 20 min. After decapitation at this time-point concentrations of 70-80 mg methyl acetate/100 mL were found in the blood. Similar experiments with inhalation exposure to methanol showed that the narcotic effects are mainly induced by methyl acetate. Cats exposed to 10,560 ppm methyl acetate vapor suffered from irritation of the eyes and salivation. Rats were exposed (at 10,000 ppm in ambient air) to a thinner containing methyl acetate (12.6%) in a plastic container for 10 min at 10 min intervals (2 times/day, 6 days/wk, for 12-14 mo). Body weight gain was suppressed compared to controls. Electron microscopic exam of slices of the cerebral cortex showed increased abnormal cristae of mitochondria in the neurons and axons and increased number of endoplasmic reticula and ribosomes and dilated Golgi apparatus in the neurons. Increased lysosomes and lipid materials were observed in neurons, suggesting a degenerative process. Methyl acetate did not produce an increase in revertants in Salmonella typhimurium strains TA 98, TA 100, TA 1535, TA 1537 and TA 1538, and Escherichia coli WP2uvrA, in the absence or presence of metabolic activation. Methyl acetate was tested up to 5,000 ug/plate. Negative results were obtained in a study using Salmonella typhimurium strains TA97, TA98, TA100, TA1535 and TA1538 with or without metabolic activation system, when tested up to 10,000 ug/plate. This study employed a 20-minute preincubation period. Biotransformation of methyl acetate takes place by rapid hydrolysis of the compound into methanol and acetic acid by the nonspecific carboxylic esterases in the blood and tissues.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 暴露途径
该物质可以通过吸入其蒸气被身体吸收。
The substance can be absorbed into the body by inhalation of its vapour.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
  • 暴露途径
吸入,吞食,皮肤和/或眼睛接触
inhalation, ingestion, skin and/or eye contact
来源:The National Institute for Occupational Safety and Health (NIOSH)
毒理性
  • 症状
眼睛、皮肤、鼻子、喉咙刺激;头痛,嗜睡;视神经萎缩;胸部紧缩;在动物中:麻醉
irritation eyes, skin, nose, throat; headache, drowsiness; optic nerve atrophy; chest tightness; In Animals: narcosis
来源:The National Institute for Occupational Safety and Health (NIOSH)
毒理性
  • 吸入症状
喉咙痛。咳嗽。头痛。困倦。
Sore throat. Cough. Headache. Drowsiness.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
吸收、分配和排泄
口服给予家兔甲基乙酸盐后,甲基乙酸盐被水解为甲醇和乙酸。动物接受了20 mL/kg体重的5%水溶液(1,000 mg/kg)的剂量。从给药后30分钟开始至5小时,分析了血液中的甲醇浓度。在任何样本中都没有检测到甲基乙酸盐,而甲醇在给药后30分钟就已经出现在血液和尿液中。血液中甲醇的峰值浓度在3小时后测量,达到0.573 mg/mL。口服给药后,甲基乙酸盐在肠道中被水解。因此,在血液和尿液中只发现了甲醇和乙酸,而没有甲基乙酸盐。同样,在吸入暴露后,血液和尿液中只能检测到水解产物。...
After oral administration to rabbits, methyl acetate was hydrolysed to methanol and acetic acid. The animals received a dosage of 20 mL/kg bw of a 5% aqueous solution (1,000 mg/kg). Methanol concentration was analysed in the blood from 30 minutes after application up to 5 hours. Methyl acetate could not be detected in any sample whereas methanol was found in blood and urine already after 30 min. Peak concentrations of methanol in the blood were measured after 3 hours and amounted to 0.573 mg/mL. Following oral application methyl acetate is hydrolysed in the gut. Therefore, in blood and urine only methanol and acetic acid were found, not methyl acetate. Similarly, after inhalation exposure in blood and urine only the products of hydrolysis were detectable. ...
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
甲基乙酸酯很容易被肺部吸收。
Methyl acetate is readily absorbed /in/ the lungs.
来源:Hazardous Substances Data Bank (HSDB)

安全信息

  • 职业暴露等级:
    A
  • 职业暴露限值:
    TWA: 200 ppm (610 mg/m3), STEL: 250 ppm (760 mg/m3)
  • TSCA:
    Yes
  • 危险等级:
    3
  • 立即威胁生命和健康浓度:
    3,100 ppm [10% LEL]
  • 危险品标志:
    F
  • 安全说明:
    S16,S26,S29,S33
  • 危险类别码:
    R66,R36,R67,R11
  • WGK Germany:
    1
  • 海关编码:
    2915 39 00
  • 危险品运输编号:
    UN 1231 3/PG 2
  • 危险类别:
    3
  • RTECS号:
    AI9100000
  • 包装等级:
    II
  • 危险标志:
    GHS02,GHS07
  • 危险性描述:
    H225,H319,H336
  • 危险性防范说明:
    P210,P280,P304 + P340 + P312,P305 + P351 + P338,P337 + P313,P403 + P235
  • 储存条件:
    储存注意事项: - 储存于阴凉、通风的库房。 - 远离火种、热源,库温不宜超过37℃。 - 保持容器密封。 - 应与氧化剂、酸类、碱类分开存放,切忌混储。 - 采用防爆型照明和通风设施。 - 禁止使用易产生火花的机械设备和工具。 - 储区应备有泄漏应急处理设备和合适的收容材料。

SDS

SDS:b2a3fff13ce8c3306d987b2ea91f3765
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第一部分:化学品名称

制备方法与用途

理化性质

乙酸甲酯(化学式:CH3COOCH3),分子量74.08。无色透明液体,有芳香气味且略带苦味。易燃、易挥发,并在常温下可溶于乙醇、乙醚、水、丙酮、苯和氯仿等有机溶剂中,在20℃时水中的溶解度达31.9g/100ml。天然存在于葡萄和香蕉中。

  • 熔点:-98.1°C
  • 沸点:57°C (101.3325 kPa)
  • 相对密度:0.9330
  • 折光率:1.3595

乙酸甲酯的爆炸极限为3.1%~16%,空气中最高允许浓度为200ppm。蒸气有麻醉性,吸入有毒。

含量分析

按气相色谱法(GT-10-4)中非极性柱方法测定含量。

毒性

乙酸甲酯的急性毒性数据如下:

  • 口服LD50 > 5g/kg (大鼠)
  • LD50: 2900mg/kg (小鼠,经口)
  • 皮试LD50 > 5g/kg (兔子)

作为香料可安全用于食品(FDA, §172.515, 2000),FEMA认定为GRAS(一般认为安全),并经FDA批准食用。欧洲理事会也将乙酸甲酯列入可加入食品中而对人体健康无害的人造食用香料表中,并规定其ADI值为1mg/kg。

使用限量
  • FEMA (mg/kg):软饮料28;冷饮29;糖果11;焙烤食品14;明胶与布丁0.10;含醇饮料0.20。

乙酸甲酯用于配制香精时,各香料成分不得超过在GB 2760中的最大允许使用量和最大允许残留量。

危险性

乙酸甲酯属低毒物质。主要经呼吸道、消化道进入人体,皮肤的吸收量较少。体内可水解产生甲醇,进而生成甲醛和甲酸,其含量与接触剂量成正比。临床表现为黏膜刺激症状、神经系统损害、眼部损害、呼吸系统损伤以及代谢性酸中毒。

化学性质

乙酸甲酯又称醋酸甲酯,无色透明液体,有芳香气味且略带苦味。易燃、易挥发,并在常温下可溶于乙醇、乙醚、水、丙酮、苯和氯仿等有机溶剂中,在水中溶解度为31.9g/100ml(20℃)。天然存在于葡萄和香蕉中。

爆炸极限:3.1%~16%

用途
  • 用作硝基纤维素和醋酸纤维素的快干性溶剂,用于油漆涂料。
  • 制造人造革及香料,作为油脂萃取剂。
  • 合成染料和药物原料。
生产方法

由乙酸与甲醇在硫酸存在下直接酯化反应生成粗制品,再用氯化钙脱水、碳酸钠中和后分馏得成品。

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
    • 1
    • 2
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量
    • 1
    • 2

反应信息

  • 作为反应物:
    描述:
    乙酸甲酯硼酸silica gel 作用下, 生成 乙烯酮
    参考文献:
    名称:
    Manufacture of ketenes
    摘要:
    公开号:
    US02175811A1
  • 作为产物:
    描述:
    三醋精 在 C16H25N3O2S 作用下, 以 甲醇 为溶剂, 反应 24.0h, 以99%的产率得到乙酸甲酯
    参考文献:
    名称:
    用于(反式)酯化的酰胺/两性两性离子催化剂:在生物柴油合成中的应用
    摘要:
    已经开发了一类基于酰胺阴离子/亚胺阳离子电荷对的两性离子有机催化剂。两性离子易于通过使氮丙啶与氨基吡啶反应来制备。它们催化地适用于酯交换和脱水酯化。机理研究表明,酰胺阴离子和亚胺阳离子在活化反应伙伴方面具有协同作用,亚胺阳离子部分通过非经典氢键与羰基底物相互作用。该反应可在温和条件下用于大规模合成生物柴油。
    DOI:
    10.1021/acscatal.9b01959
  • 作为试剂:
    描述:
    4'-(3,7-dimethyl-oct-2-enyl)-2,4,3',5'-tetramethoxy-bibenzyl 在 乙酸甲酯臭氧 作用下, 生成 (3,5,2',4'-tetramethoxy-bibenzyl-4-yl)-acetaldehyde 、 6-甲基-2-庚酮
    参考文献:
    名称:
    Observations and Model Simulations of Carbon Monoxide Emission Factors from a California Highway
    摘要:
    A series of twelve intensively monitored 1-hr CO dispersion studies were conducted near Davis, CA, in winter 1996. The experimental equipment included twelve CO sampling ports at elevations up to 50 m, three sonic anemometers, a tethersonde station, aircraft measurements of wind and temperature profile aloft, and a variety of conventional meteorological equipment. The study was designed to explore the role of vehicular exhaust buoyancy during worst-case meteorological conditions, such as low winds oriented in near-parallel alignment with the road during a surface-based nocturnal inversion. From the study, field estimates of the CO emission factor (EF) from a California vehicle fleet were computed using two different methods. The analysis suggests that the CT-EMFAC/EMFAC (EMission FACtor) models currently used to conduct federal conformity modeling significantly overpredict CO emissions for high-speed, free-flowing traffic on California highways.
    DOI:
    10.1080/10473289.2001.10464248
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文献信息

  • Cyclobutanonesvia the (1-Oxycyclopropyl)methanol Route
    作者:Ernest Wenkert、Norman F. Golob、Robert P. Hatch、David Wenkert、Roberto Pellicciari
    DOI:10.1002/hlca.19770600102
    日期:1977.1.26
    1-oxycyclopropyl structure, prapared mostly from α-alkoxy-α,β-unsaturated ketnnes and esters by way of reductinn and Simmons-Smith reaction of the resultant α-alkoxyallyl alcohols, are shown to rearrange into cyclobutanones on acid treatment (cf. Scheme 1).
    多种1-oxycyclopropyl结构的醇的,从α -烷氧基- α,通过reductinn和的方式β不饱和ketnnes和酯制备大多西蒙斯-史密斯所得α-alkoxyallyl醇的反应中,被示出为重新排列为上cyclobutanones酸处理(参见方案1)。
  • [EN] SUBSTITUTED BENZYLAMINE COMPOUNDS, THEIR USE IN MEDICINE, AND IN PARTICULAR THE TREATMENT OF HEPATITIS C VIRUS (HCV) INFECTION<br/>[FR] COMPOSÉS DE BENZYLAMINE SUBSTITUÉS, LEUR UTILISATION EN MÉDECINE, EN PARTICULIER DANS LE TRAITEMENT D'UNE INFECTION PAR LE VIRUS DE L'HÉPATITE C (VHC)
    申请人:ASTEX THERAPEUTICS LTD
    公开号:WO2013064538A1
    公开(公告)日:2013-05-10
    The invention provides compounds of the formula (I): or a salt, N-oxide or tautomer thereof, wherein A is CH, CF or nitrogen; E is CH, CF or nitrogen; and R0 is hydrogen or C1-2 alkyl; R1a is selected from CONH2; CO2H; an optionally substituted acyclic C1-8 hydrocarbon group; and an optionally substituted monocyclic carbocyclic or heterocyclic group of 3 to 7 ring members, of which 0, 1, 2, 3 or 4 are heteroatom ring members selected from O, N and S; R2 is selected from hydrogen and a group R2a; R2a is selected from an optionally substituted acyclic d-8 hydrocarbon group; an optionally substituted monocyclic carbocyclic or heterocyclic group of 3 to 7 ring members, of which 0, 1 or 2 ring members are heteroatom ring members selected from O, N and S; and an optionally substituted bicyclic heterocyclic group of 9 or 10 ring members, of which 1 or 2 ring members are nitrogen atoms; wherein at least one of R1 and R2 is other than hydrogen; R3 is an optionally substituted 3- to 10-membered monocyclic or bicyclic carbocyclic or heterocyclic ring containing 0, 1, 2 or 3 heteroatom ring members selected from N, O and S; R4a is selected from halogen; cyano; C1-4 alkyl optionally substituted with one or more fluorine atoms; C1-4 alkoxy optionally substituted with one or more fluorine atoms; hydroxy-C1-4 alkyl; and C1-2 alkoxy-C1-4 alkyl; R5 is selected from hydrogen and a substituent R5a; and R5a is selected from C1-2 alkyl optionally substituted with one or more fluorine atoms; C1-3 alkoxy optionally substituted with one or more fluorine atoms; halogen; cyclopropyl; cyano; and amino, The compounds have activity against hepatitis C virus and can be used in the prevention or treatment of hepatitis C viral infections.
    该发明提供了以下式(I)的化合物,或其盐、N-氧化物或互变异构体,其中A为CH、CF或氮;E为CH、CF或氮;R0为氢或C1-2烷基;R1a选自CONH2;CO2H;一个可选择取代的非环状C1-8碳氢化合物基团;以及一个可选择取代的含有3至7个环成员的单环碳环或杂环基团,其中0、1、2、3或4个是从O、N和S中选择的杂原子环成员;R2选自氢和一个基团R2a;R2a选自一个可选择取代的非环状d-8碳氢化合物基团;一个可选择取代的含有3至7个环成员的单环碳环或杂环基团,其中0、1或2个环成员是从O、N和S中选择的杂原子环成员;以及一个可选择取代的含有9或10个环成员的双环杂环基团,其中1或2个环成员是氮原子;其中R1和R2中至少一个不是氢;R3选自一个可选择取代的含有0、1、2或3个从N、O和S中选择的杂原子环成员的3至10个成员的单环或双环碳环或杂环环;R4a选自卤素;氰基;C1-4烷基,可选择取代一个或多个氟原子;C1-4烷氧基,可选择取代一个或多个氟原子;羟基-C1-4烷基;和C1-2烷氧基-C1-4烷基;R5选自氢和一个取代基R5a;R5a选自C1-2烷基,可选择取代一个或多个氟原子;C1-3烷氧基,可选择取代一个或多个氟原子;卤素;环丙基;氰基;和氨基。这些化合物对丙型肝炎病毒具有活性,并可用于预防或治疗丙型肝炎病毒感染。
  • [EN] COMPOUNDS INHIBITING LEUCINE-RICH REPEAT KINASE ENZYME ACTIVITY<br/>[FR] COMPOSÉS INHIBANT L'ACTIVITÉ ENZYMATIQUE DE LA KINASE À MOTIFS RÉPÉTÉS RICHES EN LEUCINE
    申请人:MERCK SHARP & DOHME
    公开号:WO2014137723A1
    公开(公告)日:2014-09-12
    The present invention is directed to indazole compounds which are potent inhibitors of LRRK2 kinase and useful in the treatment or prevention of diseases in which the LRRK2 kinase is involved, such as Parkinson's Disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which LRRK-2 kinase is involved.
    本发明涉及吲唑类化合物,这些化合物是LRRK2激酶的有效抑制剂,并且在治疗或预防LRRK2激酶参与的疾病,如帕金森病中有用。该发明还涉及包含这些化合物的药物组合物,以及在预防或治疗LRRK-2激酶参与的这类疾病中使用这些化合物和组合物。
  • [EN] COMPOUNDS INHIBITING LEUCINE-RICH REPEAT KINASE ENZYME ACTIVITY<br/>[FR] COMPOSÉS INHIBANT L'ACTIVITÉ ENZYMATIQUE DE LA KINASE À SÉQUENCE RÉPÉTÉE RICHE EN LEUCINE
    申请人:MERCK SHARP & DOHME
    公开号:WO2014134774A1
    公开(公告)日:2014-09-12
    Disclosed are indazole compounds which are potent inhibitors of LRRK2 kinase and useful in the treatment or prevention of diseases in which LRRK2 kinase is involved. Also disclosed are pharmaceutical compositions in the prevention or treatment of such diseases in which LRRK2 kinase is involved.
    揭示了一种indazole化合物,它们是LRRK2激酶的有效抑制剂,并且在涉及LRRK2激酶的疾病的治疗或预防中有用。还揭示了在涉及LRRK2激酶的这类疾病的预防或治疗中使用的药物组合物。
  • Asymmetric Synthesis of Natural <i>cis</i>-Dihydroarenediols Using Tetrahydroxynaphthalene Reductase and Its Biosynthetic Implications
    作者:Nirmal Saha、Michael Müller、Syed Masood Husain
    DOI:10.1021/acs.orglett.9b00500
    日期:2019.4.5
    Asymmetric reduction of hydroxynaphthoquinones to secondary metabolites, (3S,4R)-3,4,8- and (2S,4R)-2,4,8-trihydroxy-1-tetralone, a putative biosynthetic diketo intermediate and a probable natural analogue, (3S,4R)-7-acetyl-3,4,8-trihydroxy-6-methyl-3,4-dihydronaphthalene-1(2H)-one, using NADPH-dependent tetrahydroxynaphthalene reductase (T4HNR) of Magnaporthe grisea is described. This work implies
    羟基萘醌不对称还原为次级代谢产物(3 S,4 R)-3,4,8-和(2 S,4 R)-2,4,8-三羟基-1-四氢萘酮,一种假定的生物合成二酮中间体和可能天然类似物,(3小号,4 - [R)-7-乙酰基3,4,8-三羟基-6-甲基-3,4-二氢萘-1(2 ħ) -酮,使用NADPH依赖性羟基萘还原酶(T描述了稻瘟病菌(Magnaporthe grisea)的4 HNR)。这项工作暗示通过减少含羟基萘醌支架的底物,在其他二氢芳烃的(生物)合成过程中,T 4 HNR或相关酶的参与。
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表征谱图

  • 氢谱
    1HNMR
  • 质谱
    MS
  • 碳谱
    13CNMR
  • 红外
    IR
  • 拉曼
    Raman
hnmr
mass
cnmr
ir
raman
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  • 峰位匹配
  • 表征信息
Shift(ppm)
Intensity
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同类化合物

(甲基3-(二甲基氨基)-2-苯基-2H-azirene-2-羧酸乙酯) (±)-盐酸氯吡格雷 (±)-丙酰肉碱氯化物 (d(CH2)51,Tyr(Me)2,Arg8)-血管加压素 (S)-(+)-α-氨基-4-羧基-2-甲基苯乙酸 (S)-阿拉考特盐酸盐 (S)-赖诺普利-d5钠 (S)-2-氨基-5-氧代己酸,氢溴酸盐 (S)-2-[3-[(1R,2R)-2-(二丙基氨基)环己基]硫脲基]-N-异丙基-3,3-二甲基丁酰胺 (S)-1-(4-氨基氧基乙酰胺基苄基)乙二胺四乙酸 (S)-1-[N-[3-苯基-1-[(苯基甲氧基)羰基]丙基]-L-丙氨酰基]-L-脯氨酸 (R)-乙基N-甲酰基-N-(1-苯乙基)甘氨酸 (R)-丙酰肉碱-d3氯化物 (R)-4-N-Cbz-哌嗪-2-甲酸甲酯 (R)-3-氨基-2-苄基丙酸盐酸盐 (R)-1-(3-溴-2-甲基-1-氧丙基)-L-脯氨酸 (N-[(苄氧基)羰基]丙氨酰-N〜5〜-(diaminomethylidene)鸟氨酸) (6-氯-2-吲哚基甲基)乙酰氨基丙二酸二乙酯 (4R)-N-亚硝基噻唑烷-4-羧酸 (3R)-1-噻-4-氮杂螺[4.4]壬烷-3-羧酸 (3-硝基-1H-1,2,4-三唑-1-基)乙酸乙酯 (2S,3S,5S)-2-氨基-3-羟基-1,6-二苯己烷-5-N-氨基甲酰基-L-缬氨酸 (2S,3S)-3-((S)-1-((1-(4-氟苯基)-1H-1,2,3-三唑-4-基)-甲基氨基)-1-氧-3-(噻唑-4-基)丙-2-基氨基甲酰基)-环氧乙烷-2-羧酸 (2S)-2,6-二氨基-N-[4-(5-氟-1,3-苯并噻唑-2-基)-2-甲基苯基]己酰胺二盐酸盐 (2S)-2-氨基-3-甲基-N-2-吡啶基丁酰胺 (2S)-2-氨基-3,3-二甲基-N-(苯基甲基)丁酰胺, (2S,4R)-1-((S)-2-氨基-3,3-二甲基丁酰基)-4-羟基-N-(4-(4-甲基噻唑-5-基)苄基)吡咯烷-2-甲酰胺盐酸盐 (2R,3'S)苯那普利叔丁基酯d5 (2R)-2-氨基-3,3-二甲基-N-(苯甲基)丁酰胺 (2-氯丙烯基)草酰氯 (1S,3S,5S)-2-Boc-2-氮杂双环[3.1.0]己烷-3-羧酸 (1R,4R,5S,6R)-4-氨基-2-氧杂双环[3.1.0]己烷-4,6-二羧酸 齐特巴坦 齐德巴坦钠盐 齐墩果-12-烯-28-酸,2,3-二羟基-,苯基甲基酯,(2a,3a)- 齐墩果-12-烯-28-酸,2,3-二羟基-,羧基甲基酯,(2a,3b)-(9CI) 黄酮-8-乙酸二甲氨基乙基酯 黄荧菌素 黄体生成激素释放激素 (1-5) 酰肼 黄体瑞林 麦醇溶蛋白 麦角硫因 麦芽聚糖六乙酸酯 麦根酸 麦撒奎 鹅膏氨酸 鹅膏氨酸 鸦胆子酸A甲酯 鸦胆子酸A 鸟氨酸缩合物

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