methyl (2S)-2-isocyanato-2-phenylacetate | 170902-42-8

• 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: methyl (2S)-2-isocyanato-2-phenylacetate
• CAS: 170902-42-8
• 化学式: C₁₀H₉NO₃
• 分子量: 191.186
• InChiKey: SHKLHQANVPYACZ-VIFPVBQESA-N

物化性质

• 沸点：
  258.4±33.0 °C(Predicted)
• 密度：
  1.12±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  55.7
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl (2S)-2-isocyanato-2-phenylacetate 以 四氢呋喃 、 乙醇 为溶剂， 反应 89.0h， 生成 (S)-N-Methyl-2-phenyl-2-[3-(5-thioxo-4,5-dihydro-[1,3,4]thiadiazol-2-yl)-ureido]-acetamide
  参考文献：
  名称：

  Synthesis of a Series of Stromelysin-Selective Thiadiazole Urea Matrix Metalloproteinase Inhibitors

  摘要：

  The synthesis and enzyme inhibition data for a series of thiadiazole urea matrix metalloproteinase (MMP) inhibitors are described. A broad screening effort was utilized to identify several thiadiazoles which were weak inhibitors of stromelysin. Optimization of the thiadiazole leads to include an alpha-amino acid side chain with variable terminal amide substituents provided a series of ureas which were moderately effective stromelysin inhibitors, with K-i's between 0.3 and 1.0 mu M. The most effective analogues utilized an L-phenylalanine as the amino acid component. In particular, unsubstituted 46 had a K-i of 710 nM, while the p-fluoro analogue 52 displayed increased potency (100 nM). Stromelysin inhibition was further improved using a pentafluorophenylalanine substituent which resulted in 70, a 14 nM inhibitor. While gelatinase inhibition was generally poor, the use of 1-(2-pyridyl)piperazine as the amide component usually provided for enhanced activity, with 71 inhibiting gelatinase with a K-i of 770 nM. The combination of this heterocycle with a p-fluorophenylalanine substituent provided the only analogue, 69, with collagenase activity (13 mu M). The SAR for analogues described within this series can be rationalized through consideration of the X-ray structure recently attained for 70 complexed to stromelysin. Uniquely, this structure showed the inhibitor to be completely orientated on the left side of the enzyme cleft. These results suggest that thiadiazole urea heterocycles which incorporate a substituted phenylalanine can provide selective inhibitors of stromelysin. Careful selection of the amide substituent can also provide for analogues with modest gelatinase inhibition.

  DOI：

  10.1021/jm9803222
• 作为产物：
  描述：

  N-benzyloxycarbonyl-L-phenylglycine methyl ester 在 盐酸 、 氢气 、 溶剂黄146 、 锌 作用下， 以 二氯甲烷 、 水 为溶剂， 生成 methyl (2S)-2-isocyanato-2-phenylacetate
  参考文献：
  名称：

  Hydantoin-Free Synthesis of Peptide Ester Isocyanates, Isothiocyanates, and Dipeptidyl Ureas: The Application of Zinc Dust in a Carbonylation Procedure without Base

  摘要：

  在使用活性锌粉作为非碱性HCl清除剂的情况下，描述了无需使用海因（hydantoin）的肽酯异氰酸酯自由合成方法，即非Schotten-Baumann条件。此外，在将氨基酸和肽酰胺转化为异氰酸酯的过程中，该方法不会产生N-酰化产物。

  DOI：

  10.1055/s-0030-1260216

文献信息

• Transfer of Chiral Information through Molecular Assembly
  作者：Ronald K. Castellano、Colin Nuckolls、Julius Rebek

  DOI：10.1021/ja993165k

  日期：1999.12.1

  Calix[4]arenes substituted with ureas on their upper, wider rims form dimers in solution held together by a seam of 16 hydrogen bonds. The resulting molecular capsules have interiors capable of accommodating small-molecule guests. By virtue of the assembly process, a head-to-tail arrangement of ureas is formed that can assume either a clockwise or counterclockwise orientation around the equator of

  杯[4]芳烃在其上部较宽的边缘被脲取代，在溶液中形成二聚体，通过 16 个氢键的接缝连接在一起。由此产生的分子胶囊具有能够容纳小分子客人的内部结构。凭借组装过程，形成了尿素头尾相连的排列，它可以围绕胶囊的赤道呈顺时针或逆时针方向。尿素功能上的氨基酸对杯芳烃的二聚化行为具有显着影响。首先，手性衍生物倾向于与芳基脲取代的杯芳烃结合，而不是与它们自身结合。异亮氨酸和缬氨酸等具有 β 支链侧链的氨基酸对异源二聚化具有这种选择性。第二，氨基酸的点手性在组装时被转移，从而形成一个手性胶囊，其尿素的头尾排列只有一个方向。圆二向色光谱用于分配...