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3-乙氧基-5-甲基异噁唑 | 127020-20-6

中文名称
3-乙氧基-5-甲基异噁唑
中文别名
3-乙氧基-5-甲基异恶唑
英文名称
3-ethoxy-5-methylisoxazole
英文别名
3-ethoxy-5-methyl-1,2-oxazole
3-乙氧基-5-甲基异噁唑化学式
CAS
127020-20-6
化学式
C6H9NO2
mdl
——
分子量
127.143
InChiKey
HRISCQMXUCORQZ-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

  • 沸点:
    203.6±20.0 °C(Predicted)
  • 密度:
    1.040±0.06 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    1.4
  • 重原子数:
    9
  • 可旋转键数:
    2
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    0.5
  • 拓扑面积:
    35.3
  • 氢给体数:
    0
  • 氢受体数:
    3

安全信息

  • 海关编码:
    2934999090

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    3-乙氧基-5-甲基异噁唑正丁基锂三乙胺 作用下, 以 二氯甲烷 为溶剂, 反应 0.33h, 生成 ethyl 3-ethoxyisoxazol-5-ylacetate
    参考文献:
    名称:
    兴奋性氨基酸拮抗剂谷氨酸二乙酯的潜在杂环生物甾体的合成和单细胞药理学。
    摘要:
    已经合成了一系列谷氨酸二乙酯(GDEE)的杂环类似物,后者是中央兴奋性氨基酸受体的拮抗剂,并进行了生物学测试。(RS)-乙基α-氨基-α-(3-乙氧基异恶唑-5-基)乙酸酯(7),(RS)-乙基2-氨基-3-(3-乙氧基-5-甲基异恶唑-4-基)丙酸酯(16)和密切相关的类似物被合成。化合物7是天然存在的兴奋性氨基酸ibotenic酸(IBO)的二乙基衍生物,它是由3-羟基-5-甲基异恶唑(1)通过3-乙氧基异恶唑-5-基乙酸(5)及其乙酯合成的。将该酯亚硝化,然后催化还原,得到7。IBO的9的乙酯以类似方式由3-苄氧基异恶唑-5-基乙酸(8)合成。合成的兴奋性氨基酸2-氨基-3-(3-羟基-5-甲基异恶唑-4-基)丙酸(AMPA)的乙基衍生物是由3-羟基-4,5-二甲基异恶唑(10)通过二乙基乙酰氨基丙二酸酯衍生物,经脱保护后可得到AMPA的3-乙氧基衍生物(15)。酯化15得到二乙基衍
    DOI:
    10.3891/acta.chem.scand.44-0096
  • 作为产物:
    描述:
    3-hydroxybut-2-enethioate de O-ethyle甲醇盐酸羟胺溶剂黄146三乙胺 作用下, 以 乙腈 为溶剂, 反应 5.0h, 生成 3-乙氧基-5-甲基异噁唑
    参考文献:
    名称:
    Synthesis of 3-Ethoxyisoxazole Derivatives and 3-Ethoxy-1H-pyrazole Derivatives fromβ-Oxo Thionoesters
    摘要:
    从β-噻吩酯中以高产率得到了3-乙氧基异噁唑和3-乙氧基-1H-吡唑。在室温下,将乙基β-噻吩酯与盐酸羟胺在三乙胺存在下反应2小时,得到乙基3-氧代丙基羟胺和它们的半缩醛,这些产物可以通过在pH 3—5下回流3小时轻松转化为3-乙氧基异噁唑。另一方面,将乙基β-噻吩酯与肼衍生物在三乙胺存在下在室温下反应3—8小时,可以直接得到3-乙氧基-1H-吡唑。
    DOI:
    10.1246/bcsj.73.1861
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文献信息

  • A convenient synthesis of 4-substituted 3-ethoxy-5-methylisoxazoles by palladium-catalyzed coupling reactions
    作者:Hasse Kromann、Frank A Sløk、Tommy N Johansen、Povl Krogsgaard-Larsen
    DOI:10.1016/s0040-4020(01)00052-7
    日期:2001.3
    The coupling reactions were performed using 3-ethoxy-4-iodo-5-methylisoxazole (4) as the key intermediate. Coupling of 4 under Suzuki–Miyaura or Stille conditions using Pd(PPh3)2Cl2 and arylboronic acids or aryltin analogues, respectively, gave 4-aryl substituted isoxazoles in yields ranging from 49% for the 3-pyridyl analogue 14, to 96% for the 4-pyridyl analogue 12. Under Heck reaction conditions
    使用3-乙氧基-4-碘-5-甲基异恶唑(4)作为关键中间体进行偶联反应。的耦合4铃木-宫浦或Stille条件下使用的Pd(PPh下3)2氯2和芳基硼酸或aryltin类似物,分别得到4-芳基取代的异恶唑在产率为49%,为3-吡啶基类似物14,至96 %的4-吡啶类似物12。在Heck反应条件下使用Pd(PPh 3)2 Cl 2和4合成了在4-位含有乙烯基或炔基的3-乙氧基-5-甲基异恶唑的类似物,产率为58-98%。由4和异丙基溴化镁制得的3-乙氧基-5-甲基异恶唑-4-基溴化镁(19)与苯甲醛或苯甲酰氯平稳反应,得到所需的4- [羟基(苯基)甲基]类似物21和4-苯甲酰基- 3-乙氧基-5-甲基异恶唑(22)。的金属转移19与的ZnCl 2,并用的Pd(PPh后续处理3)2氯2和4-碘甲苯,得到3-乙氧基-5-甲基-4-(4-甲基苯基)异恶唑(23),产率为80%。
  • Substituted quinolines as antitumor agents
    申请人:Boyle Thomas Francis
    公开号:US20070021407A1
    公开(公告)日:2007-01-25
    The invention provides a compound of Formula (Ia), or a pharmaceutically acceptable salt, pro-drug or solvate thereof. wherein: n is 0 or 1; Y is selected from —NH—, —O—, —S—, or —NR 7 — where R 7 is alkyl of 1-6 carbon atoms; R 5 is cyano, fluoro, chloro or bromo; R 6 is cycloalkyl of 3 to 7 carbon atoms, which may be optionally substituted with one or more alkyl of 1 to 6 carbon atom groups; or is a pyridinyl, pyrimidinyl, or phenyl ring; wherein the pyridinyl, pyrimidinyl, or phenyl ring may be optionally mono- di-, or tri-substituted; or R 6 is a group —R 8 —X—R 9 where R 8 is a divalent cycloalkyl of 3 to 7 carbon atoms, which may be optionally further substituted with one or more alkyl of 1 to 6 carbon atom groups; or is a divalent pyridinyl, pyimidinyl, or phenyl ring; wherein the pyridinyl, pyrimidinyl, or phenyl ring may be optionally further substituted with one or more groups; and where X is selected from —NH—, —O—, —S—, CH 2 or —NR 7′ — where R 7′ is alkyl of 1-6 carbon atoms, and R 9 is a group (CH 2 ) m R 10 where m is 0, or an integer of from 1-3 and R 10 is an optionally substituted aryl or optionally substituted cycloalkyl ring of up to 10 carbon atoms, or R 10 is a optionally substituted heterocyclic ring or an N-oxide of any nitrogen containing ring; R 1 , R 2 , R 4 are independently selected from hydrogen, hydroxy, halogeno, cyano, nitro, trifluoromethyl, C 1-3 alkyl, —NR 11 R 12 — (wherein R 11 and R 12 , which may be the same or different each represents hydrogen, or C 1-3 alkyl), or a group R 13 —X 1 —(CH 2 ) x wherein x is 0 or an integer of from 1 to 3, X 1 represents a direct bond, —O—, —CH 2 —, —OC(O)—, —C(O)—, —S—, —SO—, —SO 2 —, —NR 14 C(O)—, —NR 14 C(O)O—, —C(O)NR 15 —, —C(O)ONR 15 —, —SO 2 NR 16 —, —NR 17 SO 2 — —NR 18 — or —NR 18 NR 18 — (wherein R 14 , R 15 , R 16 , R 17 and R 18 each independently represents hydrogen, C 1-3 alkyl or C 1-3 alkoxyC 2-3 alkyl)), and R 13 is hydrogen, optionally substituted hydrocarbyl, or optionally substituted heterocyclyl; and R 3 is selected from (i) a group of formula —X 1 —R x —(OH) p where X 1 is as defined above, R x is an alkylene, alkenylene or alkynylene chain, optionally interposed with a heteroatom or a heteocyclic ring and p is 1 or 2; (ii) a group of formula R 13a —(CH 2 ) y —X 1 —(CH 2 ) x where R 13 a is as defined for R 13 above, and X 1 and x are as defined above, y is 0 or an integer between 1 and 5, wherein (CH 2 ) y is optionally interposed by an X 1 group; (iii) a group of formula —X 1 —R y —NR z —R y′ —S—R y″ where X 1 is as defined above, R y , R y′ and R y″ are independently selected from alkyl, alkenyl or alkynyl chains, and R z is hydrogen or alkyl, or R z and R y″ are joined together to form an optionally substituted nitrogen and sulphur containing ring; (iv) a group of formula —X 1 —R x′ —(C 3-6 cycloalkyl) where X 1 is as defined above and R x′ is an alkylene, alkenylene or alkynylene chain, optionally interposed with a heteroatom a group of the formula —X 1 —C 1-5 alkyl where X 1 is as defined above and C 1-5 alkyl is substituted by one more substituents independently selected from chloro and cyano; (v) a group of the formula —X 1 —C 1-3 alkyl-CO—NR 18 NR 18 —R 20 where R 18 is as defined above and R 20 is selected from hydrogen or C 1-5 alkoxycarbonyl; or (vi) a heterocyclic ring. The invention also provides a process for the preparation of a compound of Formula (Ia), pharmaceutical compositions of a compound of Formula (Ia) and methods for the treatment or prevention of cancer comprising administering an effective amount of a compound of Formula (1a).
    本发明提供了公式(Ia)的化合物,或其药学上可接受的盐,前药或溶剂化物。其中:n为0或1;Y选自—NH—,—O—,—S—或—NR7—,其中R7为1-6个碳原子的烷基;R5为氰基,氟基,氯基或溴基;R6为3-7个碳原子的环烷基,可以选择地用1-6个碳原子的烷基取代;或为吡啶基,嘧啶基或苯基环;其中吡啶基,嘧啶基或苯基环可以选择性地单取代,二取代或三取代;或R6为—R8—X—R9的基团,其中R8为3-7个碳原子的二价环烷基,可以选择地进一步用1-6个碳原子的烷基取代;或为二价的吡啶基,嘧啶基或苯基环;其中吡啶基,嘧啶基或苯基环可以选择性地进一步用一个或多个基团取代;X选自—NH—,—O—,—S—,CH2或—NR7′—,其中R7′为1-6个碳原子的烷基,R9为(CH2)mR10的基团,其中m为0或1-3的整数,R10为最多有10个碳原子的可选择性取代芳基或可选择性取代的环烷基环,或R10为可选择性取代的杂环环或任何含氮环的N-氧化物;R1,R2,R4独立选择自氢,羟基,卤基,氰基,硝基,三氟甲基,C1-3烷基,—NR11R12—(其中R11和R12,可以相同或不同,每个表示氢或C1-3烷基),或R13—X1—(CH2)x的基团,其中x为0或1-3的整数,X1表示直接键,—O—,—CH2—,—OC(O)—,—C(O)—,—S—,—SO—,—SO2—,—NR14C(O)—,—NR14C(O)O—,—C(O)NR15—,—C(O)ONR15—,—SO2NR16—,—NR17SO2—,—NR18—或—NR18NR18—(其中R14,R15,R16,R17和R18各自独立表示氢,C1-3烷基或C1-3烷氧基C2-3烷基),R13为氢,可选择性取代的碳氢基或可选择性取代的杂环基;R3选自(i)公式—X1—Rx—(OH)p的基团,其中X1,Rx和p如上所定义;(ii)公式R13a—(CH2)y—X1—(CH2)x的基团,其中R13a如上所定义,X1和x如上所定义,y为0或1-5之间的整数,其中(CH2)y可以选择性地由X1基团插入;(iii)公式—X1—Ry—NRz—Ry′—S—Ry″的基团,其中X1,Ry,Ry′和Ry″各自独立选择自烷基,烯基或炔基链,Rz为氢或烷基,或Rz和Ry″结合形成可选择性取代的氮和硫含有环;(iv)公式—X1—Rx′—(C3-6环烷基)的基团,其中X1和Rx′如上所定义,可以选择性地插入一个杂原子;公式—X1—C1-5烷基的基团,其中X1如上所定义,C1-5烷基被一个或多个独立选择自氯和氰基的取代基取代;(v)公式—X1—C1-3烷基-CO—NR18NR18—R20的基团,其中R18和R20如上所定义;或(vi)杂环环。本发明还提供了公式(Ia)的化合物的制备方法,公式(Ia)的药物组合物以及使用公式(1a)的化合物的治疗或预防癌症的方法。
  • CONDENSED CYCLIC COMPOUND HAVING DOPAMINE D3 RECEPTOR ANTAGONISM
    申请人:Shionogi & Co., Ltd
    公开号:EP3744721A1
    公开(公告)日:2020-12-02
    Novel compounds having a D3 receptor antagonistic effect are provided. The compound represented by Formula (IA)': wherein A is S or O; R1a is substituted or unsubstituted alkyloxy or the like, R2a to R2d are each independently hydrogen atoms or the like, ring B is a 4- to 8-membered non-aromatic carbocycle or the like, R3 is each independently halogen or the like, r is an integer of 0 to 4, R4 is substituted or unsubstituted aromatic heterocyclyl or the like, or a pharmaceutically acceptable salt thereof.
    提供了具有 D3 受体拮抗作用的新型化合物。 由式(IA)'代表的化合物: 其中 A 是 S 或 O;R1a 是取代或未取代的烷氧基或类似物;R2a 至 R2d 各自独立地是氢原子或类似物;环 B 是 4 至 8 元非芳族碳环或类似物;R3 各自独立地是卤素或类似物;r 是 0 至 4 的整数;R4 是取代或未取代的芳族杂环或类似物、 或其药学上可接受的盐。
  • MADSEN, ULF;NIELSEN, ELSEVET ZHIAMETR;SURTIS, DAVID R.;VEATTIE, DAVID T.;+, ACTA CHEM. SCAND., 44,(1990) N, C. 96-102
    作者:MADSEN, ULF、NIELSEN, ELSEVET ZHIAMETR、SURTIS, DAVID R.、VEATTIE, DAVID T.、+
    DOI:——
    日期:——
  • US7402583B2
    申请人:——
    公开号:US7402583B2
    公开(公告)日:2008-07-22
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