(4S)-4-methyl-2-phenethyl-2H-pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione | 357666-51-4

• 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: (4S)-4-methyl-2-phenethyl-2H-pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione
• 英文别名: (4S)-4-methyl-2-(2-phenylethyl)-1,4-dihydropyrazino[2,1-b]quinazoline-3,6-dione
• CAS: 357666-51-4
• 化学式: C₂₀H₁₉N₃O₂
• 分子量: 333.39
• InChiKey: QKBOROHXJJTDSD-AWEZNQCLSA-N

物化性质

• 熔点：
  106-108 °C
• 沸点：
  564.5±60.0 °C(Predicted)
• 密度：
  1.28±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  53
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (4S)-4-methyl-2-phenethyl-2H-pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione 在 硫酸 、 pyridinium chlorochromate 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 3.0h， 生成 (-)-(9S,16bR)-9,16b-dimethyl-5,6,9,16b-tetrahydroisoquino[1',2':3,4]pyrazino[2,1-b]quinazoline-8,11-dione
  参考文献：
  名称：

  Cyclisation of (4S)-4-methyl-2-phenethyl-2,4-dihydro-(1H)-pyrazino[2,1-b]quinazoline-3,6-dione derivatives via N-acyliminium ions

  摘要：

  Enantiomerically pure 1-methylene and 1-oxo derivatives (compounds 4 and 10, respectively) of compounds 1 were obtained and studied as precursors of N-acyliminium ions. 1-Substituted-1-hydroxyderivatives, obtained by regioselective syn-addition of organometallics to compounds 10 gave the desired species under acid treatment while compounds 4 did not. -Phenethyl substituted N-acyliminium ions gave isoquino[1',2':3,4]pyrazino[2, l-b]quinazoline-8,11-diones through a Pictet-Spengler-type cyclisation. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(01)00492-x
• 作为产物：
  描述：

  (S)-3-methyl-1-phenethylpiperazine-2,5-dione 在 sodium carbonate 作用下， 以 二氯甲烷 为溶剂， 反应 26.0h， 生成 (4S)-4-methyl-2-phenethyl-2H-pyrazino[2,1-b]quinazoline-3,6(1H,4H)-dione
  参考文献：
  名称：

  涉及源自甘氨酸模板的N-酰基亚胺离子的分子内Friedel-Crafts型反应。

  摘要：

  对映体纯的4-取代的2-芳烷基-2,4-二氢-1H-吡嗪并[2,1-b]喹唑啉-3,6-二酮（1b-m），其中烷基链为（CH（2））（ n），n = 1-3，表现为甘氨酸模板，通过在乙酸乙酯的cis-1-tosyloxy衍生物中用[羟基（tosyloxy）碘]苯处理得到。当这些化合物包含n = 2的富电子芳基取代基时，它们通过分子内Friedel-Crafts型非对映选择性反应自发环化，生成五环或六环化合物。否则，它们通过溶剂分解得到顺式-1-烷氧基衍生物，如果n = 2、3，则可以在第二步中在酸中环化。所有这些反应必须通过类似于S（N）1机理的N-酰氨基发生。 。1-烷氧基-2-芳基甲基衍生物不愿环化，使反式-1-羟基化合物成为唯一的分离反应产物。

  DOI：

  10.1021/jo010166y

文献信息

• Microwave-Assisted, Solvent-Free Synthesis of Several Quinazoline Alkaloid Frameworks
  作者：J. Menéndez、Pilar Cledera、Juan Sánchez、Esmeralda Caballero、Tamara Yates、Elena Ramírez、Carmen Avendaño、M. Ramos

  DOI：10.1055/s-2007-990818

  日期：2007.11

  Microwave irradiation leads to a considerable improvement of the cyclocondensation between anthranilic acid and lactim ethers derived from piperazine-2,5-diones in terms of reaction times, yields, and stereocenter integrity. This reaction has been used to prepare some derivatives of the pyrazino[2,1-b]quinazoline-3,6-dione system present in many quinazoline alkaloids. It could also be applied to the synthesis of compounds containing the complete hexacyclic ring system of the anti-MDR natural product N-acetyl­ardeemin, and other comprising the pentacyclic framework of circumdatin E. The microwave-assisted reaction was also much better than the thermal one when applied to a bis-lactim ether, leading to the corresponding pentacyclic pyrazino[2,1-b:5,4-b′]diquinazoline-8,16-dione in excellent yield.

  微波辐照显著改善了邻氨基苯甲酸与来自哌嗪-2,5-二酮的乳酰亚胺醚之间的环加成反应，在反应时间、产率和立体中心完整性方面均有显著提升。该反应已被用于制备多种喹唑啉生物碱中存在的吡嗪并[2,1-b]喹唑啉-3,6-二酮系统的衍生物。它还可以应用于合成含有抗多药耐药天然产物N-乙酰基阿德米宁的完整六环体系化合物，以及其他包含circumdatin E的五环框架的化合物。微波辅助反应在应用于双乳酰亚胺醚时也比热反应更为高效，得到了对应的五环吡嗪并[2,1-b:5,4-b′]双喹唑啉-8,16-二酮，产率极佳。
• Solvent-Free Cyclocondensation of Lactim Ethers with Anthranilic Acid under Microwave Irradiation
  作者：J. Carlos Menéndez、Pilar Cledera、J. Domingo Sánchez、Esmeralda Caballero、Carmen Avendaño、M. Teresa Ramos

  DOI：10.1055/s-2004-817784

  日期：——

  Microwave irradiation greatly improves the results of the cyclocondensation between anthranilic acid and lactim ethers derived from 2,5-piperazinediones in terms of reaction times, yields and stereocenter integrity, leading to pyrazino[2,1-b]quinazoline-3,6-diones. The microwave-assisted reaction was also much better than the thermal one when applied to a bis-lactim ether, leading to the corresponding pentacyclic pyrazino [2,1-b:5,4-b′]diquinazol­ine-5,13-dione in excellent yield, and it also improved the preparation of compounds containing the ring system of the anti-MDR natural product N-acetylardeemin.

  微波辐射极大地改善了邻氨基苯甲酸与2,5-哌嗪二酮衍生的内酰亚胺之间的环缩合反应时​​间、产率和立构中心完整性，从而生成吡嗪并[2,1-b]喹唑啉-3,6-二酮。当应用于双内酰亚胺醚时，微波辅助反应也比热反应好得多，导致在优良的收率，同时也改进了抗MDR天然产物N-乙酰葆明含环体系​​化合物的制备。
• Cledera, Pilar; Villacampa, Mercedes; Avendano, Carmen, ARKIVOC, 2011, vol. 2011, # 3, p. 72 - 98
  作者：Cledera, Pilar、Villacampa, Mercedes、Avendano, Carmen、Menendez, J. Carlos

  DOI：——

  日期：——
• Cyclisation of (4S)-4-methyl-2-phenethyl-2,4-dihydro-(1H)-pyrazino[2,1-b]quinazoline-3,6-dione derivatives via N-acyliminium ions
  作者：Marı́a Luisa Heredia、Elena de la Cuesta、Carmen Avendaño

  DOI：10.1016/s0957-4166(01)00492-x

  日期：2001.11

  Enantiomerically pure 1-methylene and 1-oxo derivatives (compounds 4 and 10, respectively) of compounds 1 were obtained and studied as precursors of N-acyliminium ions. 1-Substituted-1-hydroxyderivatives, obtained by regioselective syn-addition of organometallics to compounds 10 gave the desired species under acid treatment while compounds 4 did not. -Phenethyl substituted N-acyliminium ions gave isoquino[1',2':3,4]pyrazino[2, l-b]quinazoline-8,11-diones through a Pictet-Spengler-type cyclisation. (C) 2001 Elsevier Science Ltd. All rights reserved.
• Intramolecular Friedel−Crafts-Type Reactions Involving <i>N</i>-Acyliminium Ions Derived from Glycine Templates
  作者：Juan Domingo Sánchez、María Teresa Ramos、Carmen Avendaño

  DOI：10.1021/jo010166y

  日期：2001.8.1

  Enantiomerically pure 4-substituted 2-aralkyl-2,4-dihydro-1H-pyrazino[2,1-b]quinazoline-3,6-diones (1b-m) in which the alkyl chain is (CH(2))(n), n = 1-3, behave as glycine templates giving by treatment with [hydroxy(tosyloxy)iodo]benzene in ethyl acetate cis-1-tosyloxy derivatives. When these compounds contain electron-rich aryl substituents with n = 2, they spontaneously cyclize through intramolecular

  对映体纯的4-取代的2-芳烷基-2,4-二氢-1H-吡嗪并[2,1-b]喹唑啉-3,6-二酮（1b-m），其中烷基链为（CH（2））（ n），n = 1-3，表现为甘氨酸模板，通过在乙酸乙酯的cis-1-tosyloxy衍生物中用[羟基（tosyloxy）碘]苯处理得到。当这些化合物包含n = 2的富电子芳基取代基时，它们通过分子内Friedel-Crafts型非对映选择性反应自发环化，生成五环或六环化合物。否则，它们通过溶剂分解得到顺式-1-烷氧基衍生物，如果n = 2、3，则可以在第二步中在酸中环化。所有这些反应必须通过类似于S（N）1机理的N-酰氨基发生。 。1-烷氧基-2-芳基甲基衍生物不愿环化，使反式-1-羟基化合物成为唯一的分离反应产物。