6-amino-3-methyl-4-(5-methylfuran-2-yl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile | 5978-67-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 6-amino-3-methyl-4-(5-methylfuran-2-yl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
• CAS: 5978-67-6
• 化学式: C₁₃H₁₂N₄O₂
• 分子量: 256.264
• InChiKey: LPBLQFLPCJJWIK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  101
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3-甲基-3-吡唑啉-5-酮 、 2-[(5-methylfuran-2-yl)methylene]malononitrile 在 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 0.03h， 以76%的产率得到6-amino-3-methyl-4-(5-methylfuran-2-yl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile
  参考文献：
  名称：

  Dihydropyrano [2,3-c] pyrazole: Novel in vitro inhibitors of yeast α-glucosidase

  摘要：

  Inhibition of alpha-glucosidase enzyme activity is a reliable approach towards controlling post-prandial hyperglycemia associated risk factors. During the current study, a series of dihydropyrano[ 2,3-c] pyrazoles (1-35) were synthesized and evaluated for their a-glucosidase inhibitory activity. Compounds 1, 4, 22, 30, and 33 were found to be the potent inhibitors of the yeast alpha-glucosidase enzyme. Mechanistic studies on most potent compounds reveled that 1, 4, and 30 were non-competitive inhibitors (K-i = 9.75 +/- 0.07, 46 +/- 0.0001, and 69.16 +/- 0.01 mu M, respectively), compound 22 is a competitive inhibitor (K-i = 190 +/- 0.016 mu M), while 33 was an uncompetitive inhibitor (K-i = 45 +/- 0.0014 mu M) of the enzyme. Finally, the cytotoxicity of potent compounds (i.e. compounds 1, 4, 22, 30, and 33) was also evaluated against mouse fibroblast 3T3 cell line assay, and no toxicity was observed. This study identifies non-cytotoxic novel inhibitors of alpha-glucosidase enzyme for further investigation as anti-diabetic agents. (C) 2016 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.bioorg.2016.01.008

文献信息

• Tris-hydroxymethylaminomethane (THAM): a novel organocatalyst for a environmentally benign synthesis of medicinally important tetrahydrobenzo[b]pyrans and pyran-annulated heterocycles
  作者：Kapil S. Pandit、Pramod V. Chavan、Uday V. Desai、Makarand A. Kulkarni、Prakash P. Wadgaonkar

  DOI：10.1039/c4nj02346c

  日期：——

  A simple, efficient and environmentally benign protocol has been developed for the one-pot, multicomponent synthesis of medicinally important tetrahydrobenzo[b]pyrans and pyran-annulated heterocycles using a commercially available, inexpensive, non-toxic, and biodegradable tris-hydroxymethylaminomethane (THAM) as a novel organocatalyst. Ambient reaction conditions, wide scope, avoidance of conventional

  已经开发了一种简单，有效且对环境无害的方案，用于使用市售，廉价，无毒且可生物降解的三羟甲基甲基甲烷（THAM）一锅，多组分合成重要的药用四氢苯并[ b ]吡喃和吡喃环杂环）作为新型有机催化剂。环境反应条件，宽范围，避免常规分离以及纯化技术以及催化剂连续五次运行的可重复使用性提高了该多组分反应规程歧管的实用性。
• Dihydropyrano [2,3-c] pyrazole: Novel in vitro inhibitors of yeast α-glucosidase
  作者：Hamdy Kashtoh、Munira Taj Muhammad、Jalaluddin J.A. Khan、Saima Rasheed、Ajmal Khan、Shahnaz Perveen、Kulsoom Javaid、Atia-tul-Wahab、Khalid Mohammed Khan、M. Iqbal Choudhary

  DOI：10.1016/j.bioorg.2016.01.008

  日期：2016.4

  Inhibition of alpha-glucosidase enzyme activity is a reliable approach towards controlling post-prandial hyperglycemia associated risk factors. During the current study, a series of dihydropyrano[ 2,3-c] pyrazoles (1-35) were synthesized and evaluated for their a-glucosidase inhibitory activity. Compounds 1, 4, 22, 30, and 33 were found to be the potent inhibitors of the yeast alpha-glucosidase enzyme. Mechanistic studies on most potent compounds reveled that 1, 4, and 30 were non-competitive inhibitors (K-i = 9.75 +/- 0.07, 46 +/- 0.0001, and 69.16 +/- 0.01 mu M, respectively), compound 22 is a competitive inhibitor (K-i = 190 +/- 0.016 mu M), while 33 was an uncompetitive inhibitor (K-i = 45 +/- 0.0014 mu M) of the enzyme. Finally, the cytotoxicity of potent compounds (i.e. compounds 1, 4, 22, 30, and 33) was also evaluated against mouse fibroblast 3T3 cell line assay, and no toxicity was observed. This study identifies non-cytotoxic novel inhibitors of alpha-glucosidase enzyme for further investigation as anti-diabetic agents. (C) 2016 Elsevier Inc. All rights reserved.