N-benzyl-N-acetylalanine

• 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: N-benzyl-N-acetylalanine
• 英文别名: 2-(N-benzylacetamido)propanoic acid；2-[acetyl(benzyl)amino]propanoic acid
• 化学式: C₁₂H₁₅NO₃
• 分子量: 221.256
• InChiKey: BWNUBNZDOXXPOX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  57.6
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N-benzyl-N-acetylalanine 在 N,N'-二异丙基碳二亚胺 作用下， 以 四氢呋喃 为溶剂， 生成 3-benzyl-2,4-dimethyloxazol-3-ium-5-olate
  参考文献：
  名称：

  Synthesis of 2- and 3-Indolylpyrroles via 1,3-Dipolar Cycloadditions of Münchnones and Nitroalkenes

  摘要：

  A series of 2- and 3-indolylpyrroles were generated via 1,3-dipolar cycloadditions between (2-nitrovinyl)indoles and symmetrical and unsymmetrical 1,3-oxazolium-5-olates (munchnones).

  DOI：

  10.3987/com-10-s(e)125
• 作为产物：
  描述：

  N-benzylidenealanine benzyl ester 在 palladium on activated charcoal sodium tetrahydroborate 、 氢气 作用下， 以 吡啶 、 甲醇 、 乙醇 为溶剂， 反应 0.5h， 生成 N-benzyl-N-acetylalanine
  参考文献：
  名称：

  Novel Formation and Crystal Structure of 2-(2,2,2-Trifluoroethylidene)-6-trifluoro-methyl-2,3-dihydro-4H-1,4-oxazin-3-ones from N-Acetyl-N-alkyl-a-amino Acids

  摘要：

  The title compounds (2a-g) were formed from N-acetyl-N-alkyl-alpha-amino acids (la-g) on treatment with trifluoroacetic anhydride in the presence of pyridine. The structure of the product (2a) was determined by single crystal X-Ray analysis.

  DOI：

  10.3987/com-97-7936

文献信息

• Chemical modification of ansamitocins. III. Synthesis and biological effects of 3-acyl esters of maytansinol.
  作者：AKIYOSHI KAWAI、HIROSHI AKIMOTO、YOSHIO KOZAI、KOICHIRO OOTSU、SEIICHI TANIDA、NAOTO HASHIMOTO、HIROAKI NOMURA

  DOI：10.1248/cpb.32.3441

  日期：——

  Several semisynthetic maytansinoids that differ in the structure of the acyl group at the C3 position were prepared by acylation of maytansinol (3) using appropriate carboxylic acids or their active derivatives, and the effects of the compounds on the growth of Tetrahymena pyriformis and the survival of tumor-bearing mice were determined. Among these analogs, the C3 esters having a straight chain aliphatic acyl (11, 12), cycloalkanecarbonyl (18-20) or phenylacetyl group (22), and those having a 2-(N-acetyl-N-methyl) aminohexanoyl (7) or (2-(N-acetyl-N-methyl) aminophenylpropionyl group (8), strongly inhibited the growth of T. pyriformis and exhibited potent activity against B16 melanoma in mice. The potencies were similar to those of maytansine and ansamitocin P-3. The most striking result was the finding that the phenylglycinate (31) was superior to maytansine in terms of its broader effective dose range against ip B16 melanoma and P388 leukemia in mice ; however, higher doses of the phenylglycinate were required.

  几种半合成的美坦素类药物，其C3位置的酰基结构不同，是通过使用适当的羧酸或其活性衍生物对美坦醇（3）进行酰化而制备的。研究了这些化合物对梨形兽原虫（Tetrahymena pyriformis）生长和肿瘤-bearing小鼠生存的影响。在这些类似物中，具有直链脂肪酸酰基（11, 12）、环烷酸酰基（18-20）或苯乙酰基（22）的C3酯，以及具有2-(N-乙酰-N-甲基)氨基己酸酰基（7）或2-(N-乙酰-N-甲基)氨基苯丙酸酰基（8）的化合物，极大地抑制了T. pyriformis的生长，并对小鼠的B16黑色素瘤表现出强烈的活性。这些化合物的效力与美坦素和安萨米托新P-3相似。最引人注目的结果是发现苯甘氨酸酯（31）在对小鼠腹腔B16黑色素瘤和P388白血病的有效剂量范围上优于美坦素；然而，需要更高剂量的苯甘氨酸酯。
• New Syntheses of Pyrrolo[3,4-<i>b</i>]indoles, Benzo[<i>b</i>]furo[2,3-<i>c</i>]pyrroles, and Benzo[<i>b</i>]thieno[2,3-<i>c</i>]pyrroles. Utilizing the Reaction of Münchnones (1,3-Oxazolium-5-olates) with Nitroheterocycles
  作者：Gordon W. Gribble、Erin T. Pelkey、Frank L. Switzer

  DOI：10.1055/s-1998-1887

  日期：1998.10

  1,3-Dipolar cycloaddition of münchnones (mesoionic 1,3-oxazolium-5-olates) 3 and 4 with 2- and 3-nitroindoles, 2-nitrobenzo[b]furan, and 3-nitrobenzo[b]thiophene affords the corresponding pyrrolo[3,4-b]indoles, benzo[b]furo[2,3-c]pyrroles, and benzo[b]thieno[2,3-c]pyrroles, respectively, in one operation in good to excellent yields.

  1,3-偶极环加成反应中，梅谢恩化合物（间链结构的1,3-噁唑鎓-5-醇盐）3和4与2-和3-硝基吲哚、2-硝基苯并[b]呋喃和3-硝基苯并[b]噻吩反应，分别生成相应的吡咯并[3,4-b]吲哚、苯并[b]呋喃[2,3-c]吡咯和苯并[b]噻吩[2,3-c]吡咯，且反应在一步中实现，产率良好至优异。
• Synthesis of 2- and 3-Indolylpyrroles via 1,3-Dipolar Cycloadditions of Münchnones and Nitroalkenes
  作者：Gordon W. Gribble、Justin M. Lopchuk

  DOI：10.3987/com-10-s(e)125

  日期：——

  A series of 2- and 3-indolylpyrroles were generated via 1,3-dipolar cycloadditions between (2-nitrovinyl)indoles and symmetrical and unsymmetrical 1,3-oxazolium-5-olates (munchnones).
• The reaction of arynes with münchnones: synthesis of isoindoles and azaisoindoles
  作者：Justin M. Lopchuk、Gordon W. Gribble

  DOI：10.1016/j.tetlet.2014.03.055

  日期：2014.4

  Arynes derived from silyltriflate precursors undergo a smooth 1,3-dipolar cycloaddition with munchnones to furnish isoindoles and azaisoindoles in moderate to high yields. Modification of the fluoride source, solvent, and temperature allows for the selective generation of either isoindoles or benzanthracenimines, the latter of which serve as precursors to polycyclic aromatic hydrocarbons. (C) 2014 Elsevier Ltd. All rights reserved.
• A convenient 1,3-dipolar cycloaddition approach to pyridylpyrroles
  作者：Justin M. Lopchuk、Gordon W. Gribble

  DOI：10.1016/j.tetlet.2011.05.111

  日期：2011.8

  A variety of 2-, 3-, and 4-pyridylpyrroles were synthesized in good to excellent yields via the 1,3-dipolar cycloaddition of symmetrical and unsymmetrical munchnones and nitroalkenes. The unsymmetrical munchnones show moderate to excellent regioselectivity. (C) 2011 Elsevier Ltd. All rights reserved.