佰能-BB | 161468-52-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并咪唑类
• 中文名称: 佰能-BB
• 英文名称: ethyl 6-bromo-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-1-carboxylate
• 英文别名: Ethyl 6-bromo-2,3-dihydro-2-oxo-1H-benzimidazole-1-carboxylate；ethyl 6-bromo-2-oxo-2,3-dihydro-1H-benzimidazole-1-carboxylate；ethyl 6-bromo-2-oxo-2,3-dihydro-1H-1,3-benzimidazole-1-carboxylate；ethyl 6-bromo-2-oxo-3H-benzimidazole-1-carboxylate
• CAS: 161468-52-6
• 化学式: C₁₀H₉BrN₂O₃
• 分子量: 285.097
• InChiKey: BLCBNPFPOUSZGU-UHFFFAOYSA-N

物化性质

• 密度：
  1.653±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  58.6
• 氢给体数：
  1
• 氢受体数：
  3

上下游信息

• 上游原料

  中文名称	英文名称	CAS号	化学式	分子量
  2-氧代-2,3-二氢-1H-1,3-苯并二唑-1-羧酸乙酯	ethyl 2,3-dihydro-2-oxo-1H-benzimidazole-1-carboxylate	41120-23-4	C10H10N2O3	206.201

• 下游产品

  中文名称	英文名称	CAS号	化学式	分子量
  5-溴-2-氧代-2,3-二氢-1H-苯并[D]咪唑-1-羧酸叔丁酯	5-Bromo-2,3-dihydro-2-oxo-1H-benzimidazole-1-carboxylic acid 1,1-dimethylethyl ester	161468-56-0	C12H13BrN2O3	313.151
  ——	ethyl 6-bromo-3-methyl-2-oxo-2,3-dihydro-1H-benzimidazole-1-carboxylate	339013-60-4	C11H11BrN2O3	299.124
  ——	1-O-tert-butyl 3-O-ethyl 5-bromo-2-oxobenzimidazole-1,3-dicarboxylate	1026735-66-9	C15H17BrN2O5	385.214
  ——	Ethyl 3-benzyl-6-bromo-2-oxobenzimidazole-1-carboxylate	161468-78-6	C17H15BrN2O3	375.222
  ——	Tert-butyl 5-bromo-3-(cyclohexylmethyl)-2-oxobenzimidazole-1-carboxylate	1027285-95-5	C19H25BrN2O3	409.323
  ——	Tert-butyl 3-benzyl-5-bromo-2-oxobenzimidazole-1-carboxylate	396725-94-3	C19H19BrN2O3	403.275
  ——	1-Benzyl-6-bromo-1,3-dihydro-benzoimidazole-2-one	161469-06-3	C14H11BrN2O	303.158
  ——	1-benzyl-5-bromo-1,3-dihydro-benzoimidazol-2-one	30770-12-8	C14H11BrN2O	303.158

反应信息

• 作为反应物：
  描述：

  佰能-BB 在 4-二甲氨基吡啶 、 potassium carbonate 、 异丙胺 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 1.17h， 生成 Tert-butyl 3-benzyl-5-bromo-2-oxobenzimidazole-1-carboxylate
  参考文献：
  名称：

  Regiospecific Functionalization of 1,3-Dihydro-2H-benzimidazol-2-one and Structurally Related Cyclic Urea Derivatives

  摘要：

  Methods for selectively protecting one of the degenerate nitrogen atoms of the cyclic urea derivatives 1,3-dihydro-2H-benzimidazol-2-one (6a), 1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (11), 1,3-dihydro-2H-imidazo[4,5-b]quinolin-2-ones (20), 1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (22), and 1,3-dihydro-4-phenyl-2H-imidazol-2-one (27) were developed. Heating these cyclic ureas with ethyl 2-pyridyl carbonate in the presence of a base in CH3CN at reflux or DMF at 100 degrees C cleanly provided the monoethoxycarbonyl derivatives 7a, 12, 21, 23, and 28, respectively. Alternatively, treatment of 6a with an excess of diethyl pyrocarbonate or di-tert-butyl dicarbonate afforded the bis-alkoxycarbonyl derivatives 8a and 8b, respectively, which underwent disproportionation to 7a and 7b upon heating with 1 mol equiv of 6a and K2CO3 in CH3CN at reflux. The regiochemistry of the introduction of alkoxycarbonyl groups to benzimidazol-2-one derivatives was not significantly influenced by an electron-withdrawing (CF3, 6b) or an electron-donating (OCH3, 6c) substituent at C-5 of the heterocyclic ring. However, the reaction was found to be sensitive to steric factors since a chlorine substituent ortho to one of the urea N atoms (6e) completely directed the alkoxycarbonyl moiety to the less sterically encumbered N atom, affording a single product (7f, 7g). Alkylation of 7a-g proceeded efficiently to provide products 10a-10ag after removal of the protecting group. Halogenation of monoprotected benzimidazol-2-one 7a occurred regiospecifically to give the monohalo derivatives 7h, 7i, and 7k, the identity of which were readily established from the characteristic chemical shift and spin coupling pattern in their 1H NMR spectra. A protecting group interchange strategy that took advantage of the distinctive chemical reactivities of the EtO(2)C and t-BuO(2)C protecting groups toward isopropylamine was developed that provided access to the isomerically substituted series of monohalo, mono-N-alkylated benzimidazol-2-ones 71 and 7m. The efficient derivatization of the unprotected N atom of these monoprotected cyclic urea derivatives was accomplished by treating with activated and unactivated halides in the. presence of K2CO3 or exposure to alcohols under Mitsunobu conditions. In several cases, mixtures of O- and N-alkylated products were produced which were readily separated by chromatography. Alkylation of 7h with activated halides, using K2CO3 in CH3CN at reflux, occurred without protecting group equilibration; however, a mixture of isomeric alkylated products was obtained when 7h was heated at 110 degrees C in DMF with cyclohexylmethyl bromide in the presence of K2CO3 as the base. Derivatization of 7h under Mitsunobu reaction conditions proceeded with retention of the topological substituent relationships. Subsequent removal of the alkoxycarbonyl moiety afforded monoalkylated cyclic urea derivatives.

  DOI：

  10.1021/jo00111a014
• 作为产物：
  描述：

  2-羟基苯并咪唑 在 溴 、 potassium carbonate 作用下， 以 溶剂黄146 、 乙腈 为溶剂， 反应 1.5h， 生成 佰能-BB
  参考文献：
  名称：

  Regiospecific Functionalization of 1,3-Dihydro-2H-benzimidazol-2-one and Structurally Related Cyclic Urea Derivatives

  摘要：

  Methods for selectively protecting one of the degenerate nitrogen atoms of the cyclic urea derivatives 1,3-dihydro-2H-benzimidazol-2-one (6a), 1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (11), 1,3-dihydro-2H-imidazo[4,5-b]quinolin-2-ones (20), 1,3-dihydro-2H-imidazo[4,5-c]pyridin-2-one (22), and 1,3-dihydro-4-phenyl-2H-imidazol-2-one (27) were developed. Heating these cyclic ureas with ethyl 2-pyridyl carbonate in the presence of a base in CH3CN at reflux or DMF at 100 degrees C cleanly provided the monoethoxycarbonyl derivatives 7a, 12, 21, 23, and 28, respectively. Alternatively, treatment of 6a with an excess of diethyl pyrocarbonate or di-tert-butyl dicarbonate afforded the bis-alkoxycarbonyl derivatives 8a and 8b, respectively, which underwent disproportionation to 7a and 7b upon heating with 1 mol equiv of 6a and K2CO3 in CH3CN at reflux. The regiochemistry of the introduction of alkoxycarbonyl groups to benzimidazol-2-one derivatives was not significantly influenced by an electron-withdrawing (CF3, 6b) or an electron-donating (OCH3, 6c) substituent at C-5 of the heterocyclic ring. However, the reaction was found to be sensitive to steric factors since a chlorine substituent ortho to one of the urea N atoms (6e) completely directed the alkoxycarbonyl moiety to the less sterically encumbered N atom, affording a single product (7f, 7g). Alkylation of 7a-g proceeded efficiently to provide products 10a-10ag after removal of the protecting group. Halogenation of monoprotected benzimidazol-2-one 7a occurred regiospecifically to give the monohalo derivatives 7h, 7i, and 7k, the identity of which were readily established from the characteristic chemical shift and spin coupling pattern in their 1H NMR spectra. A protecting group interchange strategy that took advantage of the distinctive chemical reactivities of the EtO(2)C and t-BuO(2)C protecting groups toward isopropylamine was developed that provided access to the isomerically substituted series of monohalo, mono-N-alkylated benzimidazol-2-ones 71 and 7m. The efficient derivatization of the unprotected N atom of these monoprotected cyclic urea derivatives was accomplished by treating with activated and unactivated halides in the. presence of K2CO3 or exposure to alcohols under Mitsunobu conditions. In several cases, mixtures of O- and N-alkylated products were produced which were readily separated by chromatography. Alkylation of 7h with activated halides, using K2CO3 in CH3CN at reflux, occurred without protecting group equilibration; however, a mixture of isomeric alkylated products was obtained when 7h was heated at 110 degrees C in DMF with cyclohexylmethyl bromide in the presence of K2CO3 as the base. Derivatization of 7h under Mitsunobu reaction conditions proceeded with retention of the topological substituent relationships. Subsequent removal of the alkoxycarbonyl moiety afforded monoalkylated cyclic urea derivatives.

  DOI：

  10.1021/jo00111a014

文献信息

• Rational Design, Pharmacomodulation, and Synthesis of Dual 5-Hydroxytryptamine 7 (5-HT₇)/5-Hydroxytryptamine 2A (5-HT_2A) Receptor Antagonists and Evaluation by [¹⁸F]-PET Imaging in a Primate Brain
  作者：Emmanuel Deau、Elodie Robin、Raluca Voinea、Nathalie Percina、Grzegorz Satała、Adriana-Luminita Finaru、Agnès Chartier、Gilles Tamagnan、David Alagille、Andrzej J. Bojarski、Séverine Morisset-Lopez、Franck Suzenet、Gérald Guillaumet

  DOI：10.1021/acs.jmedchem.5b00874

  日期：2015.10.22

  We report the synthesis of 46 tertiary amine-bearing N-alkylated benzo[d]imidazol-2(3H)-ones, imidazo[4,5-b]pyridin-2(3H)-ones, imidazo[4,5-c]pyridin-2(3H)-ones, benzo[d]oxazol-2(3H)-ones, oxazolo[4,5-b]pyridin-2(3H)-ones and N,N′-dialkylated benzo[d]imidazol-2(3H)-ones. These compounds were evaluated against 5-HT7R, 5-HT2AR, 5-HT1AR, and 5-HT6R as potent dual 5-HT7/5-HT2A serotonin receptors ligands

  我们报告了46个含叔胺的N-烷基化苯并[ d ]咪唑-2（3 H）-ones，咪唑并[4,5 - b ]吡啶-2（3 H）-ones，咪唑并[4,5 ]的合成- ç ]吡啶-2（3 H ^） -酮，苯并[ d ]唑-2（3 H ^） -酮，恶唑并[4,5- b ]吡啶-2（3 H ^） -酮和ñ，ñ ' -二烷基化的苯并[ d ]咪唑-2（3 H）-ones。针对5-HT 7 R，5-HT 2A R，5-HT 1A R和5-HT 6评估了这些化合物R为有效的双重5-HT 7 / 5-HT 2A血清素受体配体。对芳香环及其取代基，烷基链长和叔胺的结构-活性关系进行了彻底的研究。1-（4-（4-（4-氟苯甲酰基）哌啶-1-基）丁基）-1 H-苯并[ d ]咪唑-2（3 H）-一（79）和1-（6-（4- （4-氟苯甲酰基）哌啶-1-基己基）-1 H-苯并[ d ]咪唑-2（3 H）-一（81）
• Novel heterocyclic compound
  申请人：Kodo Toru

  公开号：US20070191447A1

  公开（公告）日：2007-08-16

  A drug having a high affinity for benzodiazepine ω 3 receptors and showing curative and preventive effects for anxiety and depression, which comprises as the active ingredient, for example, a compound of the formula (1): wherein R 1 and R 2 are independently a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, etc., R 3 and R 4 are independently a hydrogen atom, an optionally substituted alkyl group, etc., R 5 , R 6 , R 7 and R 8 are independently a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, etc., X is an oxygen atom, a sulfur atom, NR 10 , etc. (in which R 10 is a hydrogen atom, an optionally substituted alkyl group, etc.)

  一种对苯二氮平ω3受体具有高亲和力，对焦虑和抑郁具有治疗和预防效果的药物，其包括作为活性成分的化合物，例如式（1）的化合物： 其中R1和R2分别为氢原子，可选取代烷基，可选取代芳基等； R3和R4分别为氢原子，可选取代烷基等； R5、R6、R7和R8分别为氢原子，可选取代烷基，可选取代芳基等； X为氧原子、硫原子、NR10等（其中R10为氢原子、可选取代烷基等）。
• NOVEL HETEROCYCLIC COMPOUND
  申请人：Dainippon Sumitomo Pharma Co., Ltd.

  公开号：EP1719761A1

  公开（公告）日：2006-11-08

  A drug having a high affinity for benzodiazepine ω3 receptors and showing curative and preventive effects for anxiety and depression, which comprises as the active ingredient, for example, a compound of the formula (1): wherein R1 and R2 are independently a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, etc., R3 and R4 are independently a hydrogen atom, an optionally substituted alkyl group, etc., R5, R6, R7 and R8 are independently a hydrogen atom, an optionally substituted alkyl group, an optionally substituted aryl group, etc., X is an oxygen atom, a sulfur atom, NR10, etc. (in which R10 is a hydrogen atom, an optionally substituted alkyl group, etc.)

  一种对苯二氮卓ω3 受体具有高亲和力并对焦虑症和抑郁症具有治疗和预防作用的药物，其活性成分包括例如式（1）的化合物： 其中 R1 和 R2 独立地为氢原子、任选取代的烷基、任选取代的芳基等、 R3 和 R4 独立地为氢原子、任选取代的烷基等、 R5、R6、R7 和 R8 独立地为氢原子、任选取代的烷基、任选取代的芳基等、 X 是氧原子、硫原子、NR10 等（其中 R10 是氢原子、任选取代的烷基等）
• EP1719761
  申请人：——

  公开号：——

  公开（公告）日：——
• Synthesis and progesterone receptor antagonist activities of 6-aryl benzimidazolones and benzothiazolones
  作者：Puwen Zhang、Eugene A. Terefenko、Jay Wrobel、Zhiming Zhang、Yuan Zhu、Jeffrey Cohen、Keith B. Marschke、Dale Mais

  DOI：10.1016/s0960-894x(01)00554-6

  日期：2001.10

  Novel 6-aryl benzimidazolones and benzothiazolones were prepared and examined as bioisosteres of the recently reported 6-aryl dihydroquinolines (1) for progesterone receptor (PR) antagonist activities. PR antagonist activities increased when compounds 9c-f possessed a more lipophilic group at position-1 and pendent aryl moiety para to NH moiety. Furthermore, conversion of carbonyl moiety of 9e,f to the thio-carbonyl led to benzoimidazolethiones 15a,b with significantly improved potency and binding affinity. (C) 2001 Elsevier Science Ltd. All rights reserved.