丙戊酸杂质7 | 72999-08-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羟基酸及其衍生物
• 中文名称: 丙戊酸杂质7
• 英文名称: diethyl 2-(hydroxymethyl)-2-methylmalonate
• 英文别名: 1,3-Diethyl 2-(hydroxymethyl)-2-methylpropanedioate；diethyl 2-(hydroxymethyl)-2-methylpropanedioate
• CAS: 72999-08-7
• 化学式: C₉H₁₆O₅
• 分子量: 204.223
• InChiKey: JSAJNHHEMXTZIP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  丙戊酸杂质7 在 sodium hydroxide 作用下， 以 乙醇 为溶剂， 反应 18.0h， 以73%的产率得到(+/-)-3-ethoxy-2-(hydroxymethyl)-2-methyl-3-oxopropanoic acid
  参考文献：
  名称：

  A New Synthetic Route to β-Unsubstituted β-Lactones by Intramolecular Cyclization

  摘要：

  When carboxylic acids beta-substituted by a tert-butoxy group were treated with thionyl chloride, an intermediate acyl chloride beta-substituted by a hydroxyl group was likely formed. Its subsequent intramolecular cyclization produced novel beta-lactones in one step. Two enantiomerically enriched lactones could be prepared via intermediates obtained by enzymatic hydrolysis. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00313-6
• 作为产物：
  描述：

  2-[(叔丁氧基)甲基]-2-甲基丙二酸二乙酯 在 硫酸 作用下， 以 乙醇 为溶剂， 反应 17.0h， 以93%的产率得到丙戊酸杂质7
  参考文献：
  名称：

  A New Synthetic Route to β-Unsubstituted β-Lactones by Intramolecular Cyclization

  摘要：

  When carboxylic acids beta-substituted by a tert-butoxy group were treated with thionyl chloride, an intermediate acyl chloride beta-substituted by a hydroxyl group was likely formed. Its subsequent intramolecular cyclization produced novel beta-lactones in one step. Two enantiomerically enriched lactones could be prepared via intermediates obtained by enzymatic hydrolysis. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(00)00313-6

文献信息

• DERIVATIVES OF RELEBACTAM AND USES THEREOF
  申请人：ARIXA PHARMACEUTICALS, INC.

  公开号：US20200102307A1

  公开（公告）日：2020-04-02

  Derivatives of relebactam, therapeutic methods of using the derivatives of relebactam, particularly in combination with β-lactam antibiotics and pharmaceutical compositions thereof are disclosed. The derivatives of relebactam are suitable for oral administration.

  Relebactam的衍生物、使用Relebactam的衍生物的治疗方法，特别是与β-内酰胺类抗生素结合使用以及其制药组合物已被披露。Relebactam的衍生物适合口服给药。
• Beta-lactamase inhibitors and uses thereof
  申请人：ARIXA PHARMACEUTICALS, INC.

  公开号：US10085999B1

  公开（公告）日：2018-10-02

  β-Lactamase inhibiting compounds, therapeutic methods of using the β-lactamase inhibiting compounds, particularly in combination with β-lactam antibiotics and pharmaceutical compositions thereof are disclosed. The β-lactamase inhibiting compounds are suitable for oral administration.

  β-内酰胺酶抑制化合物，使用β-内酰胺酶抑制化合物的治疗方法，特别是与β-内酰胺类抗生素结合以及其制药组合物被披露。这些β-内酰胺酶抑制化合物适合口服给药。
• AZTREONAM DERIVATIVES AND USES THEREOF
  申请人：ARIXA PHARMACEUTICALS, INC.

  公开号：US20190100516A1

  公开（公告）日：2019-04-04

  Disclosed herein are aztreonam derivatives, therapeutic methods of using the aztreonam derivatives, particularly in combination with β-lactamase inhibitors, and pharmaceutical compositions thereof. The aztreonam derivatives can be administered orally to provide orally bioavailable aztreonam.

  本文披露了阿特雷纳姆衍生物，使用阿特雷纳姆衍生物的治疗方法，特别是与β-内酰胺酶抑制剂结合使用的方法，以及它们的药物组成物。这些阿特雷纳姆衍生物可以口服给药，从而提供口服可利用的阿特雷纳姆。
• BORON OR ALUMINUM COMPLEXES
  申请人：Armand Michel

  公开号：US20110171112A1

  公开（公告）日：2011-07-14

  The present invention relates to boron and aluminum complexes, to the preparation thereof, and to the use thereof for solubilizing ionic compounds. The complexes have one of the following formulae: in which D represents B or Al; R 1 represents R, R F , NO 2 , CN, C(═O)OR, RSO 2 , or R F SO 2 ; —X 1 —, —X 2 —, —X 3 — and X 4 each represent a divalent group >C═O, >C═NC≡N, >C═C(C≡N) 2 , >CR 2 R 3 or >SO 2 ; —Y 1 —, —Y 2 — and —Y 3 — each represent a divalent group —O—, >N(C≡N), >N(COR F ), >N(SO 2 R 4 ), >NR 4 , >N(COR 4 ) or >N(SO 2 R F ); R, R 2 and R 3 each represent H, an alkyl group, an aryl group, an alkylaryl group, an arylalkyl group, an oxaalkyl group or an alkenyl group; R 4 represents an alkyl group, an aryl group, an alkylaryl group, a heteroaryl group, an arylalkyl group, an oxaalkyl group, an alkenyl group or an R F CH 2 — group; R F is a perfluoroalkyl group, a partially fluorinated alkyl group, or a partially or totally fluorinated phenyl group; each of the R′ 2 and R′ 3 groups represents R or F.

  本发明涉及硼和铝配合物，其制备方法以及用于溶解离子化合物的用途。这些配合物具有以下公式之一： 其中D代表B或Al；R1代表R、RF、NO2、CN、C(═O)OR、RSO2或RF SO2；—X1—、—X2—、—X3—和X4每个代表一个二价基团>C═O、>C═NC≡N、>C═C(C≡N)2、>CR2R3或>SO2；—Y1—、—Y2—和—Y3—每个代表一个二价基团—O—、>N(C≡N)、>N(CORF)、>N(SO2R4)、>NR4、>N(COR4)或>N(SO2RF)；R、R2和R3每个代表H、烷基、芳基、烷基芳基、芳基烷基、氧代烷基或烯基；R4代表烷基、芳基、烷基芳基、杂芳基、芳基烷基、氧代烷基、烯基或RFCH2—基团；RF是全氟烷基、部分氟化烷基或部分或完全氟化苯基；R′2和R′3中的每个代表R或F。
• Bis(hydroxymethylation) of the Active Methylene Group of 1,3-Dicarbonyl and Related Compounds
  作者：Andrei Guzaev、Harri Lönnberg

  DOI：10.1055/s-1997-1344

  日期：1997.11

  Treatment of dialkyl and di(aralkyl) malonates, alkyl cyano- and acetoacetates, and 1,3-diketones with formaldehyde in the presence of tertiary amines gives their 2,2-bis(hydroxymethyl) derivatives in 59 to 96% yield.

  用三烷基和二（芳基烷基）丙二酸酯、烷基氰基乙酸酯和乙酰乙酸酯以及1,3-二酮在三烷基胺存在下与甲醛反应，可以59%到96%的产率制得它们相应的2,2-双（羟甲基）衍生物。