trans-3-[6-(2-diethylaminoethoxy)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid methyl ester | 78312-83-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: trans-3-[6-(2-diethylaminoethoxy)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid methyl ester
• 英文别名: methyl (E)-3-[6-[2-(diethylamino)ethoxy]-4-oxoquinazolin-3-yl]prop-2-enoate
• CAS: 78312-83-1
• 化学式: C₁₈H₂₃N₃O₄
• 分子量: 345.398
• InChiKey: CMZYFKGGXJHXFT-CMDGGOBGSA-N

物化性质

• 熔点：
  131-133 °C
• 沸点：
  498.0±55.0 °C(Predicted)
• 密度：
  1.16±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  25
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  71.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  trans-3-[6-(2-diethylaminoethoxy)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid methyl ester 在 盐酸 作用下， 生成 trans-3-[6-(2-diethylaminoethoxy)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid hydrochloride
  参考文献：
  名称：

  Trans-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acid derivatives

  摘要：

  公式为##STR1##的Trans-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acid衍生物，其中R.sub.1为氢、较低烷基、较低环烷基、较低烷氧基、羟基、卤素、较低烷硫基、较低烷基磺基、较低烷基砜基、二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n O--或2-羟基乙氧基；R.sub.2为氢、较低烷基或较低烷氧基；R.sub.3为羟基、较低烷氧基、二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n O--或二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n NH--；n为2至7；要求至少R.sub.1和R.sub.2中的一个不是氢，当R.sub.3为羟基时，其与药用可接受的碱的盐，或当R.sub.3为二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n O--或二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n NH--时，其与药用可接受的酸的盐，以及其制备方法。公式I的化合物可用作预防过敏反应的药物。

  公开号：

  US04281127A1
• 作为产物：
  描述：

  2-Amino-5-(2-diethylamino-ethoxy)-benzoic acid; hydrochloride 在 sodium hydride 作用下， 反应 5.5h， 生成 trans-3-[6-(2-diethylaminoethoxy)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid methyl ester
  参考文献：
  名称：

  (E)-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acids, a new series of antiallergy agents

  摘要：

  A series of substituted (E)-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acids was prepared and evaluated in the rat passive cutaneous anaphylaxis (PCA) test for antiallergic activity. Alkoxy, alkylthio, and isopropyl substituents at the 6- or 8-positions provided highly potent compounds. Conversion to the Z isomer, reduction of the side chain double bond, or reduction of the quinazoline ring resulted in substantial loss of activity. Among the analogues that exhibited oral activity in the PCA test, (E)-3-[6-(methylthio)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid (5i) was the most potent.

  DOI：

  10.1021/jm00357a018

文献信息

• Trans-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acid derivatives
  申请人：Hoffmann-La Roche Inc.

  公开号：US04281127A1

  公开（公告）日：1981-07-28

  Trans-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acid derivatives of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl, lower cycloalkyl, lower alkoxy, hydroxy, halo, lower alkykthio, lower alkylsulfinyl, lower alkylsulfonyl, di-(C.sub.1 -C.sub.7)alkyl-N(CH.sub.2).sub.n O-- or 2-hydroxyethoxy; R.sub.2 is hydrogen, lower alkyl or lower alkoxy; R.sub.3 is hydroxy, lower alkoxy, di-(C.sub.1 -C.sub.7)alkyl-N(CH.sub.2).sub.n O-- or di-(C.sub.1 -C.sub.7)alkyl-N(CH.sub.2).sub.n NH--; and n is 2 to 7; provided that at least one of R.sub.1 and R.sub.2 is other than hydrogen, when R.sub.3 is hydroxy, a salt thereof with a pharmaceutically acceptable base, or when R.sub.3 is di-(C.sub.1 -C.sub.7)alkyl-N(CH.sub.2).sub.n O-- or di-(C.sub.1 -C.sub.7)alkyl-N(CH.sub.2).sub.n NH--, a salt thereof with a pharmaceutically acceptable acid, and a process for the preparation thereof, are described. The compounds of formula I are useful as agents in the prevention of allergic reactions.

  公式为##STR1##的Trans-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acid衍生物，其中R.sub.1为氢、较低烷基、较低环烷基、较低烷氧基、羟基、卤素、较低烷硫基、较低烷基磺基、较低烷基砜基、二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n O--或2-羟基乙氧基；R.sub.2为氢、较低烷基或较低烷氧基；R.sub.3为羟基、较低烷氧基、二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n O--或二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n NH--；n为2至7；要求至少R.sub.1和R.sub.2中的一个不是氢，当R.sub.3为羟基时，其与药用可接受的碱的盐，或当R.sub.3为二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n O--或二-(C.sub.1 -C.sub.7)烷基-N(CH.sub.2).sub.n NH--时，其与药用可接受的酸的盐，以及其制备方法。公式I的化合物可用作预防过敏反应的药物。
• LEMAHIEU, R. A.;CARSON, M.;NASON, W. C.;PARRISH, D. R.;WELTON, A. F.;BARU+, J. MED. CHEM., 1983, 26, N 3, 420-425
  作者：LEMAHIEU, R. A.、CARSON, M.、NASON, W. C.、PARRISH, D. R.、WELTON, A. F.、BARU+

  DOI：——

  日期：——
• Trans-Chinazolinderivate, Verfahren zu ihrer Herstellung, Zwischenprodukte und Arzneimittel enthaltend solche Chinazolinderivate
  申请人：F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft

  公开号：EP0023594B1

  公开（公告）日：1984-05-16
• US4281127A
  申请人：——

  公开号：US4281127A

  公开（公告）日：1981-07-28
• (E)-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acids, a new series of antiallergy agents
  作者：Ronald A. LeMahieu、Mathew Carson、William C. Nason、David R. Parrish、Ann F. Welton、Herman W. Baruth、Bohdan Yaremko

  DOI：10.1021/jm00357a018

  日期：1983.3

  A series of substituted (E)-3-(4-oxo-4H-quinazolin-3-yl)-2-propenoic acids was prepared and evaluated in the rat passive cutaneous anaphylaxis (PCA) test for antiallergic activity. Alkoxy, alkylthio, and isopropyl substituents at the 6- or 8-positions provided highly potent compounds. Conversion to the Z isomer, reduction of the side chain double bond, or reduction of the quinazoline ring resulted in substantial loss of activity. Among the analogues that exhibited oral activity in the PCA test, (E)-3-[6-(methylthio)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid (5i) was the most potent.