4-(2-methoxy-n-propoxy)piperidine | 70979-02-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: 4-(2-methoxy-n-propoxy)piperidine
• 英文别名: 4-(2-methoxypropoxy)piperidine
• CAS: 70979-02-1
• 化学式: C₉H₁₉NO₂
• 分子量: 173.255
• InChiKey: MNRJBWWZVOCYSN-UHFFFAOYSA-N

物化性质

• 沸点：
  233.4±30.0 °C(Predicted)
• 密度：
  0.96±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  30.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-(2-methoxy-n-propoxy)piperidine 、 2-氯-4-氨基-6,7-二甲氧基喹唑啉 在 三乙胺 作用下， 以 乙醚 、 正丁醇 为溶剂， 生成 4-amino-6,7-dimethoxy-2-<4-(2-methoxypropoxy)piperidino>quinazoline hydrochloride
  参考文献：
  名称：

  Antihypertensive

  摘要：

  心血管系统的调节剂，特别是治疗高血压的化学式为##STR1##的药用可接受的生物前体，以及其药用可接受的酸盐；其中R.sup.1和R.sup.2中的每一个是C.sub.1-4烷基或--CH.sub.2 CF.sub.3；alk是乙烯，单苯基取代的乙烯，单甲基和双甲基取代的乙烯或单苯基单甲基取代的乙烯；而R.sup.3是氢，C.sub.1-4烷基，C.sub.3-C.sub.6环烷基；苯基或取代苯基；以及它们的制备方法。

  公开号：

  US04237138A1
• 作为产物：
  描述：

  N-acetyl-4-(2-methylallyloxy)piperidine 在 sodium hydroxide 、 sodium tetrahydroborate 、 mercury(II) diacetate 作用下， 生成 4-(2-methoxy-n-propoxy)piperidine
  参考文献：
  名称：

  2,4-Diamino-6,7-dimethoxyquinazolines. 4. 2-[4-(Substituted oxyethoxy)piperidino] derivatives as .alpha.1-adrenoceptor antagonists and antihypertensive agents

  摘要：

  A series of 4-amino-6,7-dimethoxy-2-[4-(substituted oxyethoxy)piperidino] quinazoline derivatives (2) was synthesized and evaluated for alpha-adrenoceptor affinity and antihypertensive activity. Most compounds showed binding affinities within the nanomolar range for alpha 1-receptors, although 25 and 26 showed enhanced potency (Ki, ca. 1.5 X 10(-10) M), equivalent to that of prazosin. Series 2 also displaced [3H]clonidine from alpha 2-adrenoceptors, but at relatively high doses of 10(-6) M, and selectivity for alpha 1 sites still predominated. In a rabbit pulmonary artery preparation, 12, 16, and 25 were potent antagonists of the alpha 1-mediated, postjunctional vasoconstrictor activity of norepinephrine with no effect at the prejunctional alpha 2 sites which modulate transmitter release. Physicochemical measurements gave a pKa of 7.63 +/- 0.10 for 12, and N-1 protonation will be favored (60%) at physiological pH to provide the alpha 1-adrenoceptor pharmacophore, 28. Antihypertensive activity of series 2 was evaluated following oral administration to spontaneously hypertensive rats, and blood pressure was measured after 1 and 6 h. Compounds 12, 13, 16, 23, and 37 displayed moderate efficacy and duration of action in lowering blood pressure, but the plasma half-life (ca. 2 h) of 16 in dogs was not compatible with potential once-daily administration in humans.

  DOI：

  10.1021/jm00398a006

文献信息

• Chloro- and alkoxy-substituted-2,4-diaminoquinazolines and pharmaceutical compositions containing them
  申请人：PFIZER INC.

  公开号：EP0028473A1

  公开（公告）日：1981-05-13

  2,4-Diaminoquinazolinesoftheformula: and the pharmaceutically acceptable salts thereof are disclosed and claimed as novel compounds having useful antihypertensive activity wherein: Y' is hydrogen or chloro, Y2 is OR and Y' is hydrogen or OR, such that when Y' is hydrogen, Y3 is OR and when Y' is chloro, Y3 is hydrogen or OR; R represents an alkyl group having from one to three carbon atoms; when taken separately, R1 and R2 are each hydrogen, alkyl having from one to five carbon atoms, cycloalkyl having from three to eight carbon atoms, alkenyl or alkynyl each having from three to five carbon atoms or hydroxy substituted alkyl having from two to five carbon atoms; when taken together with the nitrogen atom to which they are attached, R and R2 form any one of a number of specified substituted or unsubstituted heterocyclic groups optionally containing also an atom of oxygen, sulfur or a second atom of nitrogen as a ring member. Also disclosed and claimed are pharmaceutical compositions containing such compounds, and novel intermediates for their production, having the formulae: and

  2,4-Diaminoquinazolinesoftheformula： 及其药学上可接受的盐类公开并声称是具有有用的抗高血压活性的新型化合物，其中：Y'是氢或氯，Y2是OR，Y'是氢或OR，这样，当Y'是氢时，Y3是OR，当Y'是氯时，Y3是氢或OR；R代表具有1至3个碳原子的烷基；当单独使用时，R1和R2各自是氢、具有1至5个碳原子的烷基、具有3至8个碳原子的环烷基、各自具有3至5个碳原子的烯基或炔基或具有2至5个碳原子的羟基取代的烷基；当 R 和 R2 与它们所连接的氮原子结合在一起时，R 和 R2 形成若干指定的取代或未取代的杂环基团中的任一个，这些杂环基团还可选择含有一个氧原子、硫原子或第二个氮原子作为环成员。本发明还公开了含有此类化合物的药物组合物，以及用于生产此类化合物的新型中间体，其结构式为 和
• CAMPBELL, SIMON F.;DANILEWICZ, JOHN C.;GREENGRASS, COLIN W.;PLEWS, RHONA +, J. MED. CHEM., 31,(1988) N 3, 516-520
  作者：CAMPBELL, SIMON F.、DANILEWICZ, JOHN C.、GREENGRASS, COLIN W.、PLEWS, RHONA +

  DOI：——

  日期：——
• US4237138A
  申请人：——

  公开号：US4237138A

  公开（公告）日：1980-12-02
• US4287341A
  申请人：——

  公开号：US4287341A

  公开（公告）日：1981-09-01
• US4351940A
  申请人：——

  公开号：US4351940A

  公开（公告）日：1982-09-28