{2-[6-(6-amino-purin-9-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-ylmethylsulfanyl]-ethyl}-carbamic acid tert-butyl ester | 1387563-70-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: {2-[6-(6-amino-purin-9-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-ylmethylsulfanyl]-ethyl}-carbamic acid tert-butyl ester
• CAS: 1387563-70-3
• 化学式: C₂₀H₃₀N₆O₅S
• 分子量: 466.561
• InChiKey: UFISBFZKQJGVGD-LSCFUAHRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.08
• 重原子数：
  32.0
• 可旋转键数：
  6.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  135.64
• 氢给体数：
  2.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  {2-[6-(6-amino-purin-9-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-ylmethylsulfanyl]-ethyl}-carbamic acid tert-butyl ester 在 oxone 、 potassium carbonate 、 N,N-二异丙基乙胺 、 三氟乙酸 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 为溶剂， 反应 5.0h， 生成
  参考文献：
  名称：

  Bisubstrate analog inhibitors of 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase: New lead exhibits a distinct binding mode

  摘要：

  6-Hydroxymethyl-7,8-dihydropterin pyrophosphokinase (HPPK), a key enzyme in the folate biosynthesis pathway catalyzing the pyrophosphoryl transfer from ATP to 6-hydroxymethyl-7,8-dihydropterin, is an attractive target for developing novel antimicrobial agents. Previously, we studied the mechanism of HPPK action, synthesized bisubstrate analog inhibitors by linking 6-hydroxymethylpterin to adenosine through phosphate groups, and developed a new generation of bisubstrate inhibitors by replacing the phosphate bridge with a piperidine-containing linkage. To further improve linker properties, we have synthesized a new compound, characterized its protein binding/inhibiting properties, and determined its structure in complex with HPPK. Surprisingly, this inhibitor exhibits a new binding mode in that the adenine base is flipped when compared to previously reported structures. Furthermore, the side chain of amino acid residue E77 is involved in protein-inhibitor interaction, forming hydrogen bonds with both 2' and 3' hydroxyl groups of the ribose moiety. Residue E77 is conserved among HPPK sequences, but interacts only indirectly with the bound MgATP via water molecules. Never observed before, the E77-ribose interaction is compatible only with the new inhibitor-binding mode. Therefore, this compound represents a new direction for further development. Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmc.2012.05.060
• 作为产物：
  描述：

  2-叔丁氧羰基氨基乙硫醇 、 5'-O-(苄基磺酰基)-2',3'-O-异亚丙基腺苷 在 sodium methylate 作用下， 以 甲醇 为溶剂， 反应 5.25h， 以90%的产率得到{2-[6-(6-amino-purin-9-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-ylmethylsulfanyl]-ethyl}-carbamic acid tert-butyl ester
  参考文献：
  名称：

  Bisubstrate analog inhibitors of 6-hydroxymethyl-7,8-dihydropterin pyrophosphokinase: New lead exhibits a distinct binding mode

  摘要：

  6-Hydroxymethyl-7,8-dihydropterin pyrophosphokinase (HPPK), a key enzyme in the folate biosynthesis pathway catalyzing the pyrophosphoryl transfer from ATP to 6-hydroxymethyl-7,8-dihydropterin, is an attractive target for developing novel antimicrobial agents. Previously, we studied the mechanism of HPPK action, synthesized bisubstrate analog inhibitors by linking 6-hydroxymethylpterin to adenosine through phosphate groups, and developed a new generation of bisubstrate inhibitors by replacing the phosphate bridge with a piperidine-containing linkage. To further improve linker properties, we have synthesized a new compound, characterized its protein binding/inhibiting properties, and determined its structure in complex with HPPK. Surprisingly, this inhibitor exhibits a new binding mode in that the adenine base is flipped when compared to previously reported structures. Furthermore, the side chain of amino acid residue E77 is involved in protein-inhibitor interaction, forming hydrogen bonds with both 2' and 3' hydroxyl groups of the ribose moiety. Residue E77 is conserved among HPPK sequences, but interacts only indirectly with the bound MgATP via water molecules. Never observed before, the E77-ribose interaction is compatible only with the new inhibitor-binding mode. Therefore, this compound represents a new direction for further development. Published by Elsevier Ltd.

  DOI：

  10.1016/j.bmc.2012.05.060

文献信息

• Constrained (l-)-S-adenosyl-l-homocysteine (SAH) analogues as DNA methyltransferase inhibitors
  作者：Ljubomir Isakovic、Oscar M. Saavedra、David B. Llewellyn、Stephen Claridge、Lijie Zhan、Naomy Bernstein、Arkadii Vaisburg、Nadine Elowe、Andrea J. Petschner、Jubrail Rahil、Norman Beaulieu、France Gauthier、A. Robert MacLeod、Daniel Delorme、Jeffrey M. Besterman、Amal Wahhab

  DOI：10.1016/j.bmcl.2009.03.132

  日期：2009.5

  Potent SAH analogues with constrained homocysteine units have been designed and synthesized as inhibitors of human DNMT enzymes. The five membered (2S,4S)-4-mercaptopyrrolidine-2-carboxylic acid, in 1a, was a good replacement for homocysteine, while the corresponding six-member counterpart was less active. Further optimization of 1a, changed the selectivity pro. le of these inhibitors. A Chloro substituent at the 2-position of 1a, compound 1d, retained potency against DNMT1, while N-6 alkylation, compound 7a, conserved DNMT3b2 activity. The concomitant substitutions of 1a at both 2- and N-6 positions reduced activity against both enzymes. (C) 2009 Elsevier Ltd. All rights reserved.