N-(2-oxo-2,3-dihydro-benzoxazol-6-yl)-oxalamic acid ethyl ester | 496055-49-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶唑类
• 英文名称: N-(2-oxo-2,3-dihydro-benzoxazol-6-yl)-oxalamic acid ethyl ester
• 英文别名: N-(2-oxo-2,3-dihydro-benzooxazol-6-yl)-oxamic acid ethyl ester；N-(2-oxo-2,3-dihydro-benzoxazol-6-yl)-oxamic acid ethyl ester；Ethyl 2-oxo-2-((2-oxo-2,3-dihydrobenzo[d]oxazol-6-yl)amino)acetate；ethyl 2-oxo-2-[(2-oxo-3H-1,3-benzoxazol-6-yl)amino]acetate
• CAS: 496055-49-3
• 化学式: C₁₁H₁₀N₂O₅
• 分子量: 250.211
• InChiKey: WPXDIQHMSNXANF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  93.7
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  N-(2-oxo-2,3-dihydro-benzoxazol-6-yl)-oxalamic acid ethyl ester 以 water ethanol 为溶剂， 生成 N-(2-oxo-2,3-dihydro-benzoxazol-6-yl)-oxalamic acid
  参考文献：
  名称：

  Piperdine derivatives as NMDA receptor antagonists

  摘要：

  本发明涉及化合物式（I）：1其中：V和U为氢、卤素、C1-C4烷基氨基或一起形成一个含有一个或多个杂原子的基团，且与一个或多个：（a）氢原子；（b）碳原子；（c）—CH═基团；（d）—CH2—基团；或（e）同一种或不同种类的其他杂原子；或任意组合，形成一个4-7环的同环或异环环，其中同环或异环环可以与苯基结合形成双环环，且同环或异环环或双环环可以含有一个或多个氧代、硫代、氨基、巯基、三氟甲基、C1-C4烷基、═S或—SH基团；W：为—CO—、—CH2—或—CH2—（C1-C4烷基）-；X：为—CO—；Y：为—O—、C1-C4亚烷基、C1-C4炔基、环烷基、氨基甲酰、—NH—、—N（C1-C4烷基）-、—C1-C4烷基-N（C1-C4烷基）-、—CH2O—、—CH（OH）—或—OCH2—；Z：为氢、卤素、硝基、氨基、C1-C4烷基、C1-C4烷氧基、氰基、三氟甲基、羟基或羧基；R1和R2：为氢，或一起形成一个C1-C3桥；n和m：独立地为0-3，其中n和m不能同时为0；或其光学对映体、外消旋体或药学上可接受的盐。化合物式（I）的羧酸酰衍生物是NMDA受体高效、选择性的拮抗剂。

  公开号：

  US20040157886A1
• 作为产物：
  描述：

  草酰氯单乙酯 、 6-氨基-2-苯并噁唑酮 在 sodium acetate 、 溶剂黄146 作用下， 反应 1.75h， 以74%的产率得到N-(2-oxo-2,3-dihydro-benzoxazol-6-yl)-oxalamic acid ethyl ester
  参考文献：
  名称：

  Synthesis, evaluation and metabolic studies of radiotracers containing a 4-(4-[18F]-fluorobenzyl)piperidin-1-yl moiety for the PET imaging of NR2B NMDA receptors

  摘要：

  In this study, novel specific PET radioligands containing the 4-(4-fluorobenzyl)piperidine moiety and selectively antagonistic for the NR2B subunit containing NMDA receptors were developed. Two antagonists, RGH-896 (1a) and 4-(4-fluorobenzyl)piperidinyl-1-methyl-2-benzimidazol-5-ol (2a), belonging to two different structural families, were radiolabeled by an aromatic nucleophilic radiofluorination followed by a reduction of the para-position carbonyl function. Radiotracers [F-18]1a, [F-18]2a or the pattern 4-(4-[(18)[F]-fluorobenzyl)piperidine ([(18)[F]6) demonstrated an identical in vivo behavior with high accumulation of radioactivity in bone and cartilage which would suggest a radiodefluorination of the radiotracers. The identification of metabolites from 6 by LC-MS-MS confirmed the significant degree of defluorination as a result of the in vivo hydroxylation in the benzyl ring. In conclusion, [(18)[F]1a or [(18)[F]2a are not suitable for imaging the NR2B NMDA receptors due to their poor brain penetration. We also argue for a cautious use of the radiolabeled pattern, 4-(4-[(18)[F]-fluorobenzyl)piperidine, to develop PET radiotracers.(C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.03.013

文献信息

• [EN] PIPERIDINE DERIVATIVES AS NMDA RECEPTOR ANTAGONISTS<br/>[FR] DERIVES DE PIPERIDINE UTILISES EN TANT QU'ANTAGONISTES DU RECEPTEUR N-METHYL-D-ASPARTATE (NMDA)
  申请人：RICHTER GEDEON VEGYESZET

  公开号：WO2003010159A1

  公开（公告）日：2003-02-06

  The present invention relates to new carboxylic acid amide derivatives of formula (I), wherein U, V, W, X, Y, Z, n and m are as defined as in Claim 1. A further object of the invention are the processes for producing of carboxylic acid amide compounds of formula (I), and the pharmaceutical manufacture of medicaments containing these compounds, as well as the process of treatments with these compounds, which means administering to a mammal to be treated including human - effective amount/amounts of compounds of formula (I) of the present invention as such or as medicament. The new carboxylic acid amide derivatives of formula (I) of the present invention are highly effective and selective antagonists of NMDA receptor, and moreover most of the compounds are selective antagonist of NR2B subtype of NMDA receptor.

  本发明涉及公式（I）的新羧酸酰胺衍生物，其中U、V、W、X、Y、Z、n和m如权利要求书1中所定义。本发明的另一个目标是制备公式（I）的羧酸酰胺化合物的过程，以及包含这些化合物的药物制剂的制药制造，以及使用这些化合物进行治疗的过程，即向待治疗的哺乳动物（包括人类）施用本发明的公式（I）的化合物或药物的有效量/剂量。本发明的新羧酸酰胺衍生物是高效且选择性的NMDA受体拮抗剂，而且大多数化合物是NMDA受体NR2B亚型的选择性拮抗剂。
• Piperdine derivatives as NMDA receptor antagonists
  申请人：——

  公开号：US20040157886A1

  公开（公告）日：2004-08-12

  The present invention relates to a compound of formula (I): 1 wherein: V and U are hydrogen, halogen, C 1 -C 4 alkylamino, or together form a group that contains one or more heteroatoms, and that taken together with one or more: (a) hydrogen atoms; (b) carbon atoms; (c) —CH═ groups; (d) —CH 2 — groups; or (e) additional heteroatoms of the same or different type; or any combination thereof, form a 4-7 membered homocyclic or heterocyclic ring, wherein the homocyclic or heterocyclic ring may combine with the phenyl group to form a bicyclic ring, and wherein the homocyclic or heterocyclic ring or the bicyclic ring may contain one or more oxo, thioxo, amino, mercapto, trifluoromethyl, C 1 -C 4 alkyl, ═S or —SH groups; W: is —CO—, —CH 2 — or —CH 2 —(C 1 -C 4 alkyl)-; X: is —CO—; Y: is —O—, C 1 -C 4 alkylene, C 1 -C 4 alkynylene, cycloalkylene, aminocarbonyl, —NH—, —N(C 1 -C 4 alkyl)-, —C 1 -C 4 alkylene-N(C 1 -C 4 alkyl)-, —CH 2 O—, —CH(OH)— or —OCH 2 —; Z: is hydrogen, halogen, nitro, amino, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, cyano, trifluoromethyl, hydroxyl or carboxyl; R 1 and R 2 : are hydrogen, or together form a C 1 -C 3 bridge; and n and m: independently are 0-3, wherein n and m cannot each be 0; or an optical antipode, racemate or pharmaceutically-acceptable salt thereof. The carboxylic acid amide derivatives of formula (I) are highly effective and selective antagonists of the NMDA receptor.

  本发明涉及化合物式（I）：1其中：V和U为氢、卤素、C1-C4烷基氨基或一起形成一个含有一个或多个杂原子的基团，且与一个或多个：（a）氢原子；（b）碳原子；（c）—CH═基团；（d）—CH2—基团；或（e）同一种或不同种类的其他杂原子；或任意组合，形成一个4-7环的同环或异环环，其中同环或异环环可以与苯基结合形成双环环，且同环或异环环或双环环可以含有一个或多个氧代、硫代、氨基、巯基、三氟甲基、C1-C4烷基、═S或—SH基团；W：为—CO—、—CH2—或—CH2—（C1-C4烷基）-；X：为—CO—；Y：为—O—、C1-C4亚烷基、C1-C4炔基、环烷基、氨基甲酰、—NH—、—N（C1-C4烷基）-、—C1-C4烷基-N（C1-C4烷基）-、—CH2O—、—CH（OH）—或—OCH2—；Z：为氢、卤素、硝基、氨基、C1-C4烷基、C1-C4烷氧基、氰基、三氟甲基、羟基或羧基；R1和R2：为氢，或一起形成一个C1-C3桥；n和m：独立地为0-3，其中n和m不能同时为0；或其光学对映体、外消旋体或药学上可接受的盐。化合物式（I）的羧酸酰衍生物是NMDA受体高效、选择性的拮抗剂。
• PIPERIDINE DERIVATIVES AS NMDA RECEPTOR ANTAGONISTS
  申请人：RICHTER GEDEON VEGYESZETI GYAR R.T.

  公开号：EP1409477A1

  公开（公告）日：2004-04-21
• US7435744B2
  申请人：——

  公开号：US7435744B2

  公开（公告）日：2008-10-14
• Synthesis, evaluation and metabolic studies of radiotracers containing a 4-(4-[18F]-fluorobenzyl)piperidin-1-yl moiety for the PET imaging of NR2B NMDA receptors
  作者：Romain Labas、Gwénaëlle Gilbert、Olivier Nicole、Martine Dhilly、Ahmed Abbas、Olivier Tirel、Alain Buisson、Joël Henry、Louisa Barré、Danièle Debruyne、Franck Sobrio

  DOI：10.1016/j.ejmech.2011.03.013

  日期：2011.6

  In this study, novel specific PET radioligands containing the 4-(4-fluorobenzyl)piperidine moiety and selectively antagonistic for the NR2B subunit containing NMDA receptors were developed. Two antagonists, RGH-896 (1a) and 4-(4-fluorobenzyl)piperidinyl-1-methyl-2-benzimidazol-5-ol (2a), belonging to two different structural families, were radiolabeled by an aromatic nucleophilic radiofluorination followed by a reduction of the para-position carbonyl function. Radiotracers [F-18]1a, [F-18]2a or the pattern 4-(4-[(18)[F]-fluorobenzyl)piperidine ([(18)[F]6) demonstrated an identical in vivo behavior with high accumulation of radioactivity in bone and cartilage which would suggest a radiodefluorination of the radiotracers. The identification of metabolites from 6 by LC-MS-MS confirmed the significant degree of defluorination as a result of the in vivo hydroxylation in the benzyl ring. In conclusion, [(18)[F]1a or [(18)[F]2a are not suitable for imaging the NR2B NMDA receptors due to their poor brain penetration. We also argue for a cautious use of the radiolabeled pattern, 4-(4-[(18)[F]-fluorobenzyl)piperidine, to develop PET radiotracers.(C) 2011 Elsevier Masson SAS. All rights reserved.