methyl (4R,4aS,6aR,11aS,11bR)-7,11-dihydroxy-4,11b-dimethyl-8-methylenetetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate | 57719-77-4

• 英文名称: methyl (4R,4aS,6aR,11aS,11bR)-7,11-dihydroxy-4,11b-dimethyl-8-methylenetetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate
• 英文别名: 11β,15β-dihydroxykaur-16-en-19-oic acid methyl ester
• CAS: 57719-77-4
• 化学式: C₂₁H₃₂O₄
• 分子量: 348.483
• InChiKey: JACCGSJHVGSSCD-UVDSFUGNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.07
• 重原子数：
  25.0
• 可旋转键数：
  1.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  66.76
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  重氮甲烷 、 ent-11α,15α-Dihydroxykaur-16-en-19-oic acid 以 乙醚 为溶剂， 反应 0.25h， 以99%的产率得到methyl (4R,4aS,6aR,11aS,11bR)-7,11-dihydroxy-4,11b-dimethyl-8-methylenetetradecahydro-6a,9-methanocyclohepta[a]naphthalene-4-carboxylate
  参考文献：
  名称：

  Discovery and structure–activity relationships of ent-Kaurene diterpenoids as potent and selective 11β-HSD1 inhibitors: Potential impact in diabetes

  摘要：

  The biological screening of a collection of nature occurring diterpenoids against 11 beta-HSD1 resulted in the discovery of the lead compound 1b, which pointed to the therapeutic potential for type 2 diabetes. Subsequently, an optimization project was initiated. Starting from compound 1b and its counterpart 2, the hemi-synthesis was performed on kaurenic acid scaffolds yielding 36 derivatives. Further evaluations on both human and mouse 11 beta-HSD revealed that seven urea derivatives exhibited significant improved potency and selectivity. Especially, the urea 19a has an IC50 (human 11 beta-HSD1) = 9.4 nM and selectivity index (human 11 beta-HSD) > 10,649. The 2D and 3D binding models of the complex 19a/11 beta-HSD1 were generated using docking simulations. Based on the results, the structural activity relationships (SARs) of compounds 1b and 2 were also discussed. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.05.010