2-Amino-5-(2-diethylamino-ethoxy)-benzoic acid; hydrochloride | 84117-88-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-Amino-5-(2-diethylamino-ethoxy)-benzoic acid; hydrochloride
• 英文别名: 2-amino-5-[2-(diethylamino)ethoxy]benzoic acid;hydrochloride
• CAS: 84117-88-4
• 化学式: C₁₃H₂₀N₂O₃*ClH
• 分子量: 288.774
• InChiKey: MWERBKDIRNXSFX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.11
• 重原子数：
  19
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  75.8
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-Amino-5-(2-diethylamino-ethoxy)-benzoic acid; hydrochloride 在 盐酸 、 sodium hydride 作用下， 以 various solvent(s) 为溶剂， 反应 6.0h， 生成 trans-3-[6-(2-diethylaminoethoxy)-4-oxo-4H-quinazolin-3-yl]-2-propenoic acid hydrochloride
  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
• 作为产物：
  描述：

  5-[2-(Diethylamino)ethoxy]-2-nitrobenzoic acid 、 盐酸 以91%的产率得到
  参考文献：
  名称：

  TILLEY, J. W.;KUDLESS, J.;KIERSTEAD, R. W.;MANCHAND, P. S., ORG. PREP. AND PROCED. INT., 1981, 13, N 3-4, 189-196

  摘要：

  DOI：

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。