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