4-(2-hydroxyethylamino)-2-methyl-6,7-dihydropyrimido<5,4-b><1,4>oxazin-7(8H)-one | 110858-76-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 英文名称: 4-(2-hydroxyethylamino)-2-methyl-6,7-dihydropyrimido<5,4-b><1,4>oxazin-7(8H)-one
• 英文别名: 4-(2-Hydroxyethyl)amino-2-methyl-6,7-dihydro-8H-pyrimido[5,4-b][1,4]oxazin-7-one；4-(2-hydroxyethylamino)-2-methyl-8H-pyrimido[5,4-b][1,4]oxazin-7-one
• CAS: 110858-76-9
• 化学式: C₉H₁₂N₄O₃
• 分子量: 224.219
• InChiKey: MAEDCBXHSHJORC-UHFFFAOYSA-N

物化性质

• 沸点：
  527.0±50.0 °C(Predicted)
• 密度：
  1.437±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  96.4
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  4-(2-hydroxyethylamino)-2-methyl-6,7-dihydropyrimido<5,4-b><1,4>oxazin-7(8H)-one 、 缩水甘油 在 四丁基溴化铵 作用下， 以 苯 为溶剂， 以99%的产率得到8-(2,3-dihydroxypropyl)-4-(2-hydroxyethylamino)-2-methylpyrimido[5,4-b][1,4]oxazin-7-one
  参考文献：
  名称：

  Synthesis and positive inotropic activity of novel pyrimido-[5,4-b][1,4]oxazin-7(8H)-ones

  摘要：

  DOI：

  10.1016/0223-5234(90)90117-l
• 作为产物：
  描述：

  4-[N-benzyl-N-(2-hydroxyethyl)]-amino-2-methyl-6-7-dihydro-8H-pyrimido[5,4-b][1,4]oxazin-7-one 在 palladium on activated charcoal 氢气 作用下， 以 甲醇 为溶剂， 以90%的产率得到4-(2-hydroxyethylamino)-2-methyl-6,7-dihydropyrimido<5,4-b><1,4>oxazin-7(8H)-one
  参考文献：
  名称：

  Synthesis and positive inotropic activity of novel pyrimido-[5,4-b][1,4]oxazin-7(8H)-ones

  摘要：

  DOI：

  10.1016/0223-5234(90)90117-l

文献信息

• Pyrimido[5,4-B][1,4]oxazine derivatives and pharmaceutical compositions
  申请人：Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt

  公开号：US04748175A1

  公开（公告）日：1988-05-31

  The invention relates to novel pyrimido [5,4-b][1,4]oxazine derivatives of the formula (I), and the acid addition salts thereof, pharmaceutical compositions containing them and a process for their preparation. In the formula (I) ##STR1## wherein R.sup.1 stands for a C.sub.1-4 alkyl group; R.sup.2 stands for hydrogen or halogen or an azido group or an --NR.sup.5 R.sup.6 group, wherein R.sup.5 represents hydrogen or a benzyl group, or a C.sub.1-4 alkyl group unsubstituted or substituted by a hydroxyl group, R.sup.6 stands for hydrogen, an amino group, a C.sub.3-6 cycloalkyl group, a straight or branched-chain C.sub.1-4 alkyl group optionally substituted by a hydroxyl, mercapto, aminocarbonyl, furyl, 2-benzo[1,4]dioxanyl, di(C.sub.1-4 alkyl)amino group or by a phenyl or phenoxy group optionally mono- or polysubstituted by halogen or C.sub.1-4 alkoxy group (s) or by a 6-membered, saturated nitrogen-containing heterocycle optionally containing an additional nitrogen or oxygen atom and optionally substituted by a C.sub.1-4 alkyl or benzyl group; further NR.sup.5 R.sup.6 may also represents a 6-membered, saturated, nitrogen-containing heterocycle optionally containing an additional nitrogen or oxygen atom and optionally substituted by a C.sub.2-4 alkoxycarbonyl or C.sub.1-4 hydroxyalkyl group; R.sup.3 and R.sup.4 are the same or different and stand for hydrogen or a C.sub.1-4 alkyl group; R.sup.9 stands for hydrogen or a C.sub.1-4 alkyl group unsubstituted or monosubstituted by an oxo, cyano, aminocarbonyl, C.sub.2-5 alkoxycarbonyl, pyridiyl, morpholinocarbonyl, or phenyl group or mono- or polysubstituted by OH group(s), with the proviso that R.sup.2 is different from chlorine, 4-morpholinyl and piperidyl group when R.sup.9 stands for hydrogen; or R.sup.2 is different from chlorine and 4-morpholinyl group when R.sup.9 stands for a methyl or benzyl group. The compounds of the formula (I) are capable to increase the myocardial contractile force (the performance of the failing heart) and the coronary blood flow, thus they can therapeutically be used for the treatment of the chronic heart failure and coronary disturbances.

  该发明涉及一种新型嘧啶并[5,4-b][1,4]噁嗪衍生物的公式(I)，以及其酸盐，含有它们的药物组合物和其制备方法。在公式(I)中，其中R^1代表一个C.sub.1-4烷基基团；R^2代表氢或卤素或偶氮基或--NR^5R^6基团，其中R^5代表氢或苄基团，或一个未取代或取代的C.sub.1-4烷基基团，R^6代表氢，氨基，C.sub.3-6环烷基基团，直链或支链的C.sub.1-4烷基基团，可选地取代羟基，巯基，氨基羰基，呋喃基，2-苯并[1,4]二氧杂基，二(C.sub.1-4烷基)氨基基团或由卤素或C.sub.1-4烷氧基基团单取代或多取代的苯基或苯氧基，或由含氮的饱和6-成员杂环取代的苯基或苯氧基；进一步NR^5R^6也可以表示含有额外氮或氧原子并可选地取代C.sub.1-4烷基或苄基的含氮饱和6-成员杂环；R^3和R^4相同或不同，代表氢或C.sub.1-4烷基基团；R^9代表氢或未取代或单取代的C.sub.1-4烷基基团，氧代脂肪酰基，氰基，氨基羰基，C.sub.2-5烷氧基羰基，吡啶基，吗啉基羰基或苯基或由OH基取代的单取代或多取代的羟基，条件是当R^9代表氢时，R^2与氯，4-吗啉基和哌啶基不同；或当R^9代表甲基或苄基时，R^2与氯和4-吗啉基不同。公式(I)化合物能够增加心肌收缩力（衰竭心脏的性能）和冠状血流，因此它们可以用于治疗慢性心力衰竭和冠状动脉障碍。
• KASZTREINER, E.;RABLOCZKY, G.;MAKK, N.;MATYUS, P.;DIESLER, E.;TEGDES, A.;+, EUR. J. MED. CHEM., 25,(1990) N, C. 333-341
  作者：KASZTREINER, E.、RABLOCZKY, G.、MAKK, N.、MATYUS, P.、DIESLER, E.、TEGDES, A.、+

  DOI：——

  日期：——
• US4748175A
  申请人：——

  公开号：US4748175A

  公开（公告）日：1988-05-31
• Synthesis and positive inotropic activity of novel pyrimido-[5,4-b][1,4]oxazin-7(8H)-ones
  作者：E Kasztreiner、G Rabloczky、N Makk、P Mátyus、E Diesler、A Tegdes、J Kosáry、K Czakó、S Gyürki、G Cseh、M Kürthy、L Jaszlits

  DOI：10.1016/0223-5234(90)90117-l

  日期：1990.5