α,α-diethylglycine hydrochloride | 92398-53-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: α,α-diethylglycine hydrochloride
• 英文别名: 2-Amino-2-ethylbutanoic acid hcl；2-amino-2-ethylbutanoic acid;hydrochloride
• CAS: 92398-53-3
• 化学式: C₆H₁₃NO₂*ClH
• mdl: MFCD24448810
• 分子量: 167.636
• InChiKey: VEEPAFAJGSCBOE-UHFFFAOYSA-N

物化性质

• 熔点：
  >288 °C (decomp)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.36
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.833
• 拓扑面积：
  63.3
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  α,α-diethylglycine hydrochloride 在 sodium hydroxide 、 氯化亚砜 、 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 作用下， 以 1,4-二氧六环 、 水 、 乙腈 为溶剂， 反应 504.0h， 生成 methyl trifluoroacetyl-diethylglycyl-diethylglycyl-diethylglycinate
  参考文献：
  名称：

  Helicalversus Planar Conformation of Homooligopeptides Prepared from Diethylglycine (=2-Amino-2-ethylbutanoic Acid)

  摘要：

  Homooligopeptides containing alpha,alpha-diethylgycine (= 2-amino-2-ethylbutanoic acid), were synthesized by conventional solution methods. An ethyl or methyl ester was used as protecting group at the C-terminus and a trifluoroacetyl group as protecting group at the N-terminus of the peptides. The conformations of such tri-, penta-, and hexapeptides in the solid stare were studied using X-ray crystallographic analysis, and were shown to be a bent planar CS-conformation in the case of tripeptide 8a, and a 3(10)-helical structure in the case of pentapeptide 10 and hexapeptide 11. IR and H-1-NMR spectra revealed that the dominant conformation of hexapeptide 11 in CDCl3 solution was not the 3(10)-helical structure shown in the solid state, but a fully planar C5 structure.

  DOI：

  10.1002/(sici)1522-2675(19990407)82:4<494::aid-hlca494>3.0.co;2-a
• 作为产物：
  描述：

  N-acetyl-N-(4-methoxybenzyl)-α,α-diethylglycine 4-methoxyphenyl amide 在 盐酸 、 三氟乙酸 作用下， 反应 2.0h， 生成 α,α-diethylglycine hydrochloride
  参考文献：
  名称：

  An improved approach for the synthesis of α,α-dialkyl glycine derivatives by the Ugi–Passerini reactionElectronic supplementary information (ESI) available: spectroscopic data for compounds 1-5. See http://www.rsc.org/suppdata/ob/b2/b212473b/

  摘要：

  本文提出了一种利用四组分Ugi-Passerini反应进行常规α,α-二烷基甘氨酸肽合成的一般且简单策略。反应所需异氰化物可以相对简单，其选择基于成本，因为它所生成的基团在酸性条件下易于去除；此外，这种去除并不明显受到α-烷基基团大小的影响。4-甲氧基苄基作为氨基酸N端氨基的良好离去基团，被选作反应中的胺组分。该方法通过合成几种α,α-二烷基甘氨酸的酰基衍生物系列进行了说明。还报道了后者的制备。

  DOI：

  10.1039/b212473b

文献信息

• [EN] SUBSTITUTED THIOPHENECARBOXAMIDES AS IKK-BETA SERINE-, THREONINE-PROTEIN KINASE INHIBITORS<br/>[FR] THIOPHÈNECARBOXAMIDES SUBSTITUÉS EN TANT QU'INHIBITEURS DE SÉRINE-THRÉONINE PROTÉINE KINASE IKK-BÊTA
  申请人：CHROMA THERAPEUTICS LTD

  公开号：WO2009130475A1

  公开（公告）日：2009-10-29

  Compounds of formula (IA) or (IB) are IKK inhibitors useful in the treatment of autoimmune and inflammatory diseases: wherein R7 is hydrogen or optionally substituted (C1-C6)alkyl; A is an optionally substituted aryl or heteroaryl of 5-13 ring atoms; Z is a radical of formula R1C( R2)(R3)NH-Y-L1-X1-(CH2)z- wherein R1 is a carboxylic acid group (-COOH), or an ester group which is hydrolysable by one or more intracellular esterase enzymes to a carboxylic acid group; and R2 and R3 independently represent the side chain of a natural or non-natural alpha amino acid but neither of R2 and R3 is hydrogen, or R2 and R3 taken together with the carbon atom to which they are attached form a C3-C7 cycloalkyl ring, and z, Y, L1 and X1 are as defined in the claims.

  式（IA）或（IB）的化合物是IKK抑制剂，可用于治疗自身免疫和炎症性疾病：其中R7是氢或可选择地取代的（C1-C6）烷基；A是5-13个环原子的可选择取代的芳基或杂环基；Z是具有以下结构的基团R1C（R2）（R3）NH-Y-L1-X1-（CH2）z-其中R1是羧酸基（-COOH），或者是可由一个或多个细胞内酯酶水解为羧酸基的酯基；R2和R3分别代表天然或非天然α氨基酸的侧链，但R2和R3中的任何一个都不是氢，或者R2和R3与它们连接的碳原子一起形成一个C3-C7环烷基环，z、Y、L1和X1如权利要求书中所定义。
• Peptaibolin analogues by incorporation of α,α-dialkylglycines: synthesis and study of their membrane permeating ability
  作者：Vânia I.B. Castro、Carina M. Carvalho、Rui D.V. Fernandes、Sílvia M.M.A. Pereira-Lima、Elisabete M.S. Castanheira、Susana P.G. Costa

  DOI：10.1016/j.tet.2015.12.079

  日期：2016.2

  Analogues of Peptaibolin, a peptaibol with antibiotic activity, incorporating alpha,alpha-dialkylglycines (Deg, Dpg, and Ac(6)c) at selected positions were synthesised by MW-SPPS and fully characterized. A control analogue incorporating L-alanine was also prepared. The native peptide and the analogues were studied by fluorescence spectroscopy for their membrane permeating activity. Small unilamellar vesicles (SUVs) of egg phosphatidylcholine/cholesterol (70:30) containing an encapsulated fluorescence probe (6-carboxyfluorescein) were used as membrane models. The assays of carboxyfluorescein release from SUVs upon peptide addition showed that Peptaibolin-Dpg and Peptaibolin-Ac(6)c are the most active peptides. These results indicate that the structure of the alpha,alpha-diallcylglycines is crucial for the membrane permeating ability of these Peptaibolin analogues. (C) 2016 Elsevier Ltd. All rights reserved.
• SUBSTITUTED THIOPHENECARBOXAMIDES AS IKK-BETA SERINE-, THREONINE-PROTEIN KINASE INHIBITORS
  申请人：Chroma Therapeutics Ltd.

  公开号：EP2285797A1

  公开（公告）日：2011-02-23
• An improved approach for the synthesis of α,α-dialkyl glycine derivatives by the Ugi–Passerini reactionElectronic supplementary information (ESI) available: spectroscopic data for compounds 1-5. See http://www.rsc.org/suppdata/ob/b2/b212473b/
  作者：Susana P. G. Costa、Hernâni L. S. Maia、Sílvia M. M. A. Pereira-Lima

  DOI：10.1039/b212473b

  日期：2003.4.23

  A general and simple strategy for routine peptide synthesis with α,α-dialkyl glycines taking advantage of the four-component Ugi–Passerini reaction is presented. The isonitrile required for the reaction can be relatively simple and its selection based on cost, as the group it generates is easily removed under acidic conditions; in addition, this removal is not visibly affected by the bulkiness of the α-alkyl groups. Being a good leaving group from the N-terminal amino group of the amino acid, 4-methoxybenzyl was the choice for the amine component of the reaction. The method is illustrated with the synthesis of a series of acyl derivatives of several α,α-dialkyl glycines. The preparation of the latter compounds is also reported.

  本文提出了一种利用四组分Ugi-Passerini反应进行常规α,α-二烷基甘氨酸肽合成的一般且简单策略。反应所需异氰化物可以相对简单，其选择基于成本，因为它所生成的基团在酸性条件下易于去除；此外，这种去除并不明显受到α-烷基基团大小的影响。4-甲氧基苄基作为氨基酸N端氨基的良好离去基团，被选作反应中的胺组分。该方法通过合成几种α,α-二烷基甘氨酸的酰基衍生物系列进行了说明。还报道了后者的制备。
• Helicalversus Planar Conformation of Homooligopeptides Prepared from Diethylglycine (=2-Amino-2-ethylbutanoic Acid)
  作者：Masakazu Tanaka、Naoto Imawaka、Masaaki Kurihara、Hiroshi Suemune

  DOI：10.1002/(sici)1522-2675(19990407)82:4<494::aid-hlca494>3.0.co;2-a

  日期：1999.4.7

  Homooligopeptides containing alpha,alpha-diethylgycine (= 2-amino-2-ethylbutanoic acid), were synthesized by conventional solution methods. An ethyl or methyl ester was used as protecting group at the C-terminus and a trifluoroacetyl group as protecting group at the N-terminus of the peptides. The conformations of such tri-, penta-, and hexapeptides in the solid stare were studied using X-ray crystallographic analysis, and were shown to be a bent planar CS-conformation in the case of tripeptide 8a, and a 3(10)-helical structure in the case of pentapeptide 10 and hexapeptide 11. IR and H-1-NMR spectra revealed that the dominant conformation of hexapeptide 11 in CDCl3 solution was not the 3(10)-helical structure shown in the solid state, but a fully planar C5 structure.