ethyl α-oxo-3-(2-nitro-4,5-dichlorophenyl)propanoate | 180868-81-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: ethyl α-oxo-3-(2-nitro-4,5-dichlorophenyl)propanoate
• 英文别名: Ethyl Alpha-oxo-3-(2-nitro-4,5-dichlorophenyl)propanoate；ethyl 3-(4,5-dichloro-2-nitrophenyl)-2-oxopropanoate
• CAS: 180868-81-9
• 化学式: C₁₁H₉Cl₂NO₅
• 分子量: 306.102
• InChiKey: WQKSDNNSQJXXAL-UHFFFAOYSA-N

物化性质

• 熔点：
  104-107 °C
• 沸点：
  408.3±45.0 °C(Predicted)
• 密度：
  1.470±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  89.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl α-oxo-3-(2-nitro-4,5-dichlorophenyl)propanoate 在 manganese(IV) oxide 、 lithium aluminium tetrahydride 、 铁粉 、 sodium hydride 、 二异丁基氢化铝 、 溶剂黄146 作用下， 以 四氢呋喃 、 乙醚 、 乙醇 、 正己烷 、 乙酸乙酯 为溶剂， 反应 101.0h， 生成 (2E) 3-(5,6-dichloro-1H-indol-2-yl)-prop-2-enal
  参考文献：
  名称：

  5-(5,6-Dichloro-2-indolyl)-2-methoxy-2,4-pentadienamides:  Novel and Selective Inhibitors of the Vacuolar H⁺-ATPase of Osteoclasts with Bone Antiresorptive Activity

  摘要：

  The vacuolar H+-ATPase (V-ATPase) located on the ruffled border of the osteoclast, is a proton pump which is responsible for secreting the massive amounts of protons that are required for the bone resorption process. With the aim to identify new agents which are able to prevent the excessive bone resorption associated with osteoporosis, we have designed a novel class of potent and selective inhibitors of the osteoclast proton pump, starting from the structure of the specific V-ATPase inhibitor bafilomycin A(1). Compounds 3a-d potently inhibited the V-ATPase in chicken osteoclast membranes (IC50 = 60-180 nM) and were able to prevent bone resorption by human osteoclasts in vitro at low-nanomolar concentrations. Notably, the EC50 of compound 3c in this assay was 45-fold lower than the concentration required for half-maximal inhibition of the V-ATPase from human kidney cortex. These results support the validity of the osteoclast proton pump as a useful molecular target to produce novel inhibitors of bone resorption, potentially useful as antiosteporotic agents.

  DOI：

  10.1021/jm9800144
• 作为产物：
  描述：

  4,5-二氯-2-硝基甲苯 、 草酸二乙酯 在 potassium ethoxide 作用下， 以 乙醚 、 乙醇 为溶剂， 反应 48.0h， 以59.7%的产率得到ethyl α-oxo-3-(2-nitro-4,5-dichlorophenyl)propanoate
  参考文献：
  名称：

  5-(5,6-Dichloro-2-indolyl)-2-methoxy-2,4-pentadienamides:  Novel and Selective Inhibitors of the Vacuolar H⁺-ATPase of Osteoclasts with Bone Antiresorptive Activity

  摘要：

  The vacuolar H+-ATPase (V-ATPase) located on the ruffled border of the osteoclast, is a proton pump which is responsible for secreting the massive amounts of protons that are required for the bone resorption process. With the aim to identify new agents which are able to prevent the excessive bone resorption associated with osteoporosis, we have designed a novel class of potent and selective inhibitors of the osteoclast proton pump, starting from the structure of the specific V-ATPase inhibitor bafilomycin A(1). Compounds 3a-d potently inhibited the V-ATPase in chicken osteoclast membranes (IC50 = 60-180 nM) and were able to prevent bone resorption by human osteoclasts in vitro at low-nanomolar concentrations. Notably, the EC50 of compound 3c in this assay was 45-fold lower than the concentration required for half-maximal inhibition of the V-ATPase from human kidney cortex. These results support the validity of the osteoclast proton pump as a useful molecular target to produce novel inhibitors of bone resorption, potentially useful as antiosteporotic agents.

  DOI：

  10.1021/jm9800144

文献信息

• Indole derivatives for the treatment of osteoporosis
  申请人：——

  公开号：US05985905A1

  公开（公告）日：1999-11-16

  The invention relates to indole compounds, a process for preparing, pharmaceutical compositions containing the compounds and treating diseases associated with over activity of osteoclasts.

  这项发明涉及吲哚化合物，一种制备方法，含有这些化合物的药物组合物以及治疗与破骨细胞过度活跃有关的疾病。
• [EN] INDOLE DERIVATIVES USEFUL IN THE TREATMENT OF OSTEOPOROSIS<br/>[FR] DERIVES INDOLE UTILES DANS LE TRAITEMENT DE L'OSTEOPOROSE
  申请人：SMITHKLINE BEECHAM S.P.A.

  公开号：WO1996021644A1

  公开（公告）日：1996-07-18

  (EN) A compound of formula (I) or a salt thereof, or a solvate thereof, wherein either: (i) Ra represents a group R5 which is hydrogen, alkyl or optionally substituted aryl and Rb represents a moiety of formula (a); wherein X represents a hydroxy or an alkoxy group wherein the alkyl group may be substituted or unsubstituted or X represents a group NRsRt wherein Rs and Rt each independently represent hydrogen, alkyl, substituted alkyl, optionally substituted alkenyl, optionally substituted aryl, optionally substituted arylalkyl, an optionally substituted heterocyclic group or an optionally substituted heterocyclylalkyl group, or Rs and Rt together may form a heterocyclic group; R1 represents an alkyl or a substituted or unsubstituted aryl group; and R2, R3 and R4 each independently represent hydrogen, alkyl, aryl or substituted aryl or (ii) Ra represents a moiety of the above defined formula (a) and Rb represents the above defined R5; R6 and R7 each independently represents hydrogen, hydroxy, amino, alkoxy, optionally substituted aryloxy, optionally substituted benzyloxy, alkylamino, dialkylamino, halo, trifluoromethyl, trifluoromethoxy, nitro, alkyl, carboxy, carbalkoxy, carbamoyl, alkylcarbamoyl, or R6 and R7 together represent methylenedioxy, carbonyldioxy or carbonyldiamino; and R8 represents hydrogen, hydroxy, alkanoyl, alkyl, aminoalkyl, hydroxyalkyl, carboxyalkyl, carbalkoxyalkyl, carbamoyl or aminosulphonyl; a process for the preparation of such a compound, a pharmaceutical composition comprising such a compound and the use of such a compound in medicine.(FR) Composé de la formule (I), ou un sel ou solvate de celui-ci, dans laquelle soit: (i) Ra représente un groupe R5, lequel représente hydrogène, alkyle ou aryle éventuellement substitué, et Rb représente une fraction de la formule (a) dans laquelle X représente un groupe hydroxy ou alcoxy dans lequel le groupe alkyle peut être substitué ou non, ou bien X représente un groupe NRsRt dans lequel Rs et Rt représentent chacun indépendamment hydrogène, alkyle, alkyle substitué, alcényle éventuellement substitué, aryle éventuellement substitué, arylalkyle éventuellement substitué, un groupe hétérocyclique éventuellement substitué ou un groupe hétérocyclylalkyle éventuellement substitué, ou bien Rs et Tt ensemble peuvent former un groupe hétérocyclique; R1 représente un groupe alkyle ou un groupe aryle substitué ou non; et R2, R3 et R4 représentent chacun indépendamment hydrogène, alkyle, aryle ou aryle substitué; soit (ii) Ra représente une fraction possédant la formule (a) définie ci-dessus et Rb représente R5 ci-dessus défini; R6 et R7 représentent chacun indépendamment hydrogène, hydroxy, amino, alcoxy, aryloxy éventuellement substitué, benzyloxy éventuellement substitué, alkylamino, dialkylamino, halo, trifluorométhyle, trifluorométhoxy, nitro, alkyle, carboxy, carbalcoxy, carbamoyle, alkylcarbamoyle, ou bien R6 et R7 représentent ensemble méthylènedioxy, carbonyldioxy ou carbonyldiamino; et R8 représente hydrogène, hydroxy, alcanoyle, alkyle, aminoalkyle, hydroxyalkyle, carboxyalkyle, carbalcoxyalkyle, carbamoyle ou aminosulfonyle. On décrit également un procédé de préparation d'un tel composé, une composition pharmaceutique comprenant celui-ci ainsi que l'utilisation de ce composé en médecine.

  化合物的式子（I）或其盐或溶剂化物，其中：（i）Ra代表羟基、烷基或者选配取代芳基的氢，Rb代表公式（a）的部分；其中X代表羟基或者烷氧基，其中烷基可以取代或未取代，或者X代表NRsRt的群，其中Rs和Rt各自独立地代表氢、烷基、取代烷基、选配取代烯基、选配取代芳基、选配取代芳基烷基、选配取代杂环基或者选配取代杂环基烷基，或者Rs和Rt一起形成一个杂环基；R1代表烷基或者选配取代芳基；R2、R3和R4各自独立地代表氢、烷基、芳基或者选配取代芳基；或者（ii）Ra代表上述定义的公式（a）的部分，Rb代表上述定义的R5；R6和R7各自独立地代表氢、羟基、氨基、烷氧基、选配取代芳氧基、选配取代苄氧基、烷基氨基、二烷基氨基、卤素、三氟甲基、三氟甲氧基、硝基、烷基、羧基、羧基烷氧基、氨基甲酰基、烷基氨基甲酰基，或者R6和R7一起表示甲亚氧基、羰基二亚氧基或者羰基二氨基；R8代表氢、羟基、烷酰基、烷基、氨基烷基、羟基烷基、羧基烷基、羧基烷氧基、氨基甲酰基或者氨基磺酰基；一种制备这样的化合物的方法，一种包含这样的化合物的药物组合物以及这样的化合物在医学上的用途。
• INDOLE DERIVATIVES USEFUL IN THE TREATMENT OF OSTEOPOROSIS
  申请人：Smithkline Beecham S.p.A.

  公开号：EP0802902A1

  公开（公告）日：1997-10-29
• INDOLE DERIVATIVES FOR THE TREATMENT OF OSTEOPOROSIS
  申请人：Smithkline Beecham S.p.A.

  公开号：EP0912560A1

  公开（公告）日：1999-05-06
• COMPOUNDS OF '3-(5-SUBSTITUTED OXY-2,4-DINITRO-PHENYL)-2-OXO-PROPIONIC ACID ESTER', PROCESS AND APPLICATIONS THEREOF
  申请人：Anthem Biosciences Pvt Ltd

  公开号：EP3004047B1

  公开（公告）日：2017-02-22