(20S,22R)-22-butyl-1α,3β,25-trihydroxycholesta-5,7-diene | 933993-97-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: (20S,22R)-22-butyl-1α,3β,25-trihydroxycholesta-5,7-diene
• 英文别名: (1S,3R,9S,10R,13R,14R,17R)-17-[(2S,3R)-3-butyl-6-hydroxy-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthrene-1,3-diol
• CAS: 933993-97-6
• 化学式: C₃₁H₅₂O₃
• 分子量: 472.752
• InChiKey: MGJDQOBYEMYMCH-UOAMCXLDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.1
• 重原子数：
  34
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.87
• 拓扑面积：
  60.7
• 氢给体数：
  3
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (20S,22R)-22-butyl-1α,3β,25-trihydroxycholesta-5,7-diene 以 乙醇 为溶剂， 反应 1.5h， 以10%的产率得到(20S,22R)-22-Butyl-1alpha,25-Dihydroxyvitamin D3
  参考文献：
  名称：

  22-Alkyl-20-epi-1α,25-dihydroxyvitamin D₃ Compounds of Superagonistic Activity:  Syntheses, Biological Activities and Interaction with the Receptor

  摘要：

  We previously reported that 22R-methyl-20-epi-1,25-(OH)(2)D-3 (3) possesses strong binding affinity for the vitamin D receptor (VDR) and shows superagonistic biological activities. To examine the effect of the length of an alkyl substituent at C(22) and to extend our compound library, we successfully synthesized 22R-ethyl-20-epi-1,25-(OH)(2)D-3 (4) and 22R-butyl-20-epi-1,25-(OH)(2)D-3 (5). Surprisingly, 22-ethyl analogue 4 showed stronger VDR binding affinity and transactivation potency than the superagonist of methyl analogue 3, but its calcemic activity in vivo was weaker than that of both the methyl analogue 3 and the natural hormone (1), while 22-butyl analogue 5 showed activities comparable to those of the hormone (1). A study of the docking of these new analogues to the VDR-LBD and alanine scanning mutational analysis demonstrated that 22-methyl and 22-ethyl substituents enhance the favorable hydrophobic interactions with residues lining the ligand binding pocket of the VDR, and that 22-butyl analogue 5 binds to the VDR by an induced fit mechanism.

  DOI：

  10.1021/jm060889f
• 作为产物：
  描述：

  (20S,22R)-1α,3β-bis(methoxycarbonyloxy)-22-butyl-25-[(methoxymethyl)oxy]-24-oxocholesta-5,7-diene 在 咪唑 、 sodium tetrahydroborate 、 偶氮二异丁腈 、 三正丁基氢锡 、 sodium hydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 乙醇 、 二氯甲烷 、 甲苯 为溶剂， 反应 23.5h， 生成 (20S,22R)-22-butyl-1α,3β,25-trihydroxycholesta-5,7-diene
  参考文献：
  名称：

  22-Alkyl-20-epi-1α,25-dihydroxyvitamin D₃ Compounds of Superagonistic Activity:  Syntheses, Biological Activities and Interaction with the Receptor

  摘要：

  We previously reported that 22R-methyl-20-epi-1,25-(OH)(2)D-3 (3) possesses strong binding affinity for the vitamin D receptor (VDR) and shows superagonistic biological activities. To examine the effect of the length of an alkyl substituent at C(22) and to extend our compound library, we successfully synthesized 22R-ethyl-20-epi-1,25-(OH)(2)D-3 (4) and 22R-butyl-20-epi-1,25-(OH)(2)D-3 (5). Surprisingly, 22-ethyl analogue 4 showed stronger VDR binding affinity and transactivation potency than the superagonist of methyl analogue 3, but its calcemic activity in vivo was weaker than that of both the methyl analogue 3 and the natural hormone (1), while 22-butyl analogue 5 showed activities comparable to those of the hormone (1). A study of the docking of these new analogues to the VDR-LBD and alanine scanning mutational analysis demonstrated that 22-methyl and 22-ethyl substituents enhance the favorable hydrophobic interactions with residues lining the ligand binding pocket of the VDR, and that 22-butyl analogue 5 binds to the VDR by an induced fit mechanism.

  DOI：

  10.1021/jm060889f