布立西坦杂质19 | 53657-15-1

• 物质功能分类: 分析化学 - 标准品 - 药典标准品和杂质标准品
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 中文名称: 布立西坦杂质19
• 英文名称: (R)-β-(2-propyl)-γ-butyrolactone
• 英文别名: S-β-isopropyl-γ-butyrolactone；(4S)-isopropyldihydrofuran-2-one；(S)-4-isopropyldihydrofuran-2(3H)-one；4-isopropyldihydrofuran-2-one；(3S)-3-(1-methylethyl)butyrolactone；(S)-beta-(2-propyl)-gamma-butyrolactone；(4S)-4-propan-2-yloxolan-2-one
• CAS: 53657-15-1
• 化学式: C₇H₁₂O₂
• 分子量: 128.171
• InChiKey: KSHNENOHFJQWJE-ZCFIWIBFSA-N

物化性质

• 沸点：
  208.1±8.0 °C(Predicted)
• 密度：
  0.998±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  布立西坦杂质19 在 palladium on activated charcoal 4-二甲氨基吡啶 、 ruthenium trichloride 、 sodium periodate 、 lithium aluminium tetrahydride 、 氢溴酸 、 氢气 、 三乙胺 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 四氯化碳 、 乙醚 、 乙醇 、 二氯甲烷 、 乙腈 为溶剂， -78.0~20.0 ℃ 、330.95 kPa 条件下， 反应 5.5h， 生成
  参考文献：
  名称：

  Structure−Activity Relationships of Pregabalin and Analogues That Target the α₂-δ Protein

  摘要：

  Pregabalin exhibits robust activity in preclinical assays indicative of potential antiepileptic, anxiolytic, and antihyperalgesic clinical efficacy. It binds with high affinity to the alpha(2)-delta subunit of voltage-gated calcium channels and is a substrate of the system L neutral amino acid transporter. A series of pregabalin analogues were prepared and evaluated for their alpha(2)-delta binding affinity as demonstrated by their ability to inhibit binding of [H-3]gabapentin to pig brain membranes and for their potency to inhibit the uptake of [H-3]leucine into CHO cells, a measure of their ability to compete with the endogenous substrate at the system L transporter. Compounds were also assessed in vivo for their ability to promote anxiolytic, analgesic, and anticonvulsant actions. These studies suggest that distinct structure activity relationships exist for alpha(2)-delta binding and system L transport inhibition. However, both interactions appear to play an important role in the in vivo profile of these compounds.

  DOI：

  10.1021/jm049762l
• 作为产物：
  描述：

  (4S)-3-<1-oxo-3-(1,3-dithian-2-ylidene)-2-(2-propyl)propyl>-4-(1-methylethyl)-2-oxazolidinone 在 lithium aluminium tetrahydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 1.5h， 生成 布立西坦杂质19
  参考文献：
  名称：

  Enantioselective preparation of .beta.-alkyl-.gamma.-butyrolactones from functionalized ketene dithioacetals

  摘要：

  An efficient and general enantioselective synthesis of beta-alkyl-gamma-butyrolactones has been developed. The key step of this procedure is an oxazolidinone-directed alkylation of a lithiated ketene dithioacetal that proceeds with excellent regiochemical control and high diastereofacial selectivity. Reductive removal of the chiral auxiliary followed by acid-induced cyclization of the resultant hydroxy ketene dithioacetal gives the enantiomerically pure beta-alkyl-gamma-butyrolactone.

  DOI：

  10.1021/jo00062a013

文献信息

• Catalytic Enantioselective Conjugate Reduction of Lactones and Lactams
  作者：Gregory Hughes、Masanari Kimura、Stephen L. Buchwald

  DOI：10.1021/ja0351692

  日期：2003.9.1

  A dramatic acceleration of the enantioselective copper-catalyzed conjugate reduction of alpha,beta-unsaturated lactones, lactams, and esters is reported upon addition of alcohol additives. Good to excellent yields and enantioselectivities were realized using a catalyst generated in situ from CuCl(2).H(2)O, t-BuONa, p-tol-BINAP, and PMHS, and this methodology was applied to the synthesis of (-)-Paroxetine

  据报道，在添加醇添加剂后，α、β-不饱和内酯、内酰胺和酯的对映选择性铜催化共轭还原显着加速。使用由 CuCl(2).H(2)O、t-BuONa、p-tol-BINAP 和 PMHS 原位生成的催化剂实现了良好到优异的产率和对映选择性，并且该方法用于合成 (- )-帕罗西汀。
• Mono-and disubstituted 3-propyl gamma-aminobutyric acids
  申请人：——

  公开号：US20030181523A1

  公开（公告）日：2003-09-25

  The instant invention is a series of novel mono- and disubstituted 3-propyl gamma aminobutyric acids of Formula I 1 The compounds are useful as therapeutic agents in the treatment of epilepsy, faintness attacks, hypokinesia, cranial disorders, neurodegenerative disorders, depression, anxiety, panic, pain, neuropathological disorders, arthritis, sleep disorders, IBS, and gastric damage. Methods of preparing the compounds and useful intermediates are also part of the invention.

  这项即时发明是一系列新颖的单取代和双取代的Formula I的3-丙基γ-氨基丁酸。这些化合物在治疗癫痫、晕厥发作、运动减少、头颅疾病、神经退行性疾病、抑郁症、焦虑症、恐慌、疼痛、神经病理性疾病、关节炎、睡眠障碍、肠易激综合征和胃损伤方面是有用的治疗剂。制备这些化合物和有用中间体的方法也是该发明的一部分。
• Method of treating cartilage damage
  申请人：——

  公开号：US20020072533A1

  公开（公告）日：2002-06-13

  The invention relates to a method of preventing or treating cartilage damage by administering a GABA analog such as, for example, a compound of Formula 1 and pharmaceutically acceptable salts thereof, wherein R 1 is hydrogen or straight or branched lower alkyl, and n is an integer of from 4 to 6.

  该发明涉及通过给予类似GABA的类似物，例如Formula1的化合物及其药学上可接受的盐，来预防或治疗软骨损伤的方法，其中R1是氢或直链或支链低碳烷基，n为4至6的整数。
• Enantioselective Synthesis of Dihydropyrans. Catalysis of Hetero Diels−Alder Reactions by Bis(oxazoline) Copper(II) Complexes
  作者：David A. Evans、Jeffrey S. Johnson、Edward J. Olhava

  DOI：10.1021/ja992175i

  日期：2000.3.1

  C2-symmetric bis(oxazoline)−Cu(II) complexes 1 and 2 catalyze the inverse electron demand hetero Diels−Alder reaction of α,β-unsaturated carbonyl compounds (heterodiene) with electron-rich olefins (heterodienophile) in high diastereo- and enantioselectivity. α,β-Unsaturated acyl phosphonates and β,γ-unsaturated α-keto esters and amides are effective heterodienes, while enol ethers and sulfides function

  C2-对称双(恶唑啉)-Cu(II)配合物1和2催化α,β-不饱和羰基化合物（杂二烯）与高非对映异构体中的富电子烯烃（亲异二烯体）的反电子需求杂Diels-Alder反应对映选择性。α,β-不饱和酰基膦酸酯和 β,γ-不饱和 α-酮酯和酰胺是有效的杂二烯，而烯醇醚和硫化物则起到亲杂二烯的作用。杂二烯上可能有一系列取代模式：末端烷基、芳基、烷氧基和硫醚取代基都是可以容忍的。通过这种方法对二氢吡喃的对映选择性合成已被证明是直接的：环加成可以用低至 0.2 mol% 的手性催化剂进行，并且很容易以多克规模进行。该反应表现出有利的温度-对映选择性曲线，即使在室温下选择性也超过 90%。采用固体空气稳定催化剂的简单反应方案，方便的反应温度...
• ChiralC2-Symmetric CuII Complexes as Catalysts for Enantioselective Hetero-Diels-Alder Reactions
  作者：David A. Evans、Edward J. Olhava、Jeffrey S. Johnson、Jacob M. Janey

  DOI：10.1002/(sici)1521-3773(19981231)37:24<3372::aid-anie3372>3.0.co;2-k

  日期：1998.12.31

  Air-stable and recyclable, the CuII -(bis)oxazoline complex 1 efficiently catalyzes diastereo- and enantioselective hetero-Diels-Alder reactions between β,γ-unsaturated α-keto acid derivatives 2 and vinyl ethers for the synthesis of substituted dihydropyrans 3 [Eq. (1)]. Results of the crystal structure analysis of 1 in combination with calculations on model compounds indicate the formation of a reactive

  Cu II-（双）恶唑啉络合物1空气稳定且可回收，可有效催化β，γ-不饱和α-酮酸衍生物2和乙烯基醚之间的非对映和对映选择性杂Diels-Alder反应，用于合成取代的二氢吡喃3 [等式 （1）]。1的晶体结构分析结果与对模型化合物的计算相结合，表明通过用螯合底物取代两个H 2 O配体，形成了反应性中间体。X = OEt，N（OMe）Me；R ＝烷基，芳基，烷氧基，硫代苄基。