(1R,2S,3R,4R)-[2,3-bis-(tert-butyldimethylsilanyloxy)-4-hydroxymethyl-cyclopentyl]carbamic acid tert-butyl ester | 445469-23-8

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: (1R,2S,3R,4R)-[2,3-bis-(tert-butyldimethylsilanyloxy)-4-hydroxymethyl-cyclopentyl]carbamic acid tert-butyl ester
• 英文别名: tert-butyl N-[(1R,2S,3R,4R)-2,3-bis[[tert-butyl(dimethyl)silyl]oxy]-4-(hydroxymethyl)cyclopentyl]carbamate
• CAS: 445469-23-8
• 化学式: C₂₃H₄₉NO₅Si₂
• 分子量: 475.817
• InChiKey: VVCCUOFSRIGVJW-MKXGPGLRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.67
• 重原子数：
  31
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  77
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (1R,2S,3R,4R)-[2,3-bis-(tert-butyldimethylsilanyloxy)-4-hydroxymethyl-cyclopentyl]carbamic acid tert-butyl ester 在 盐酸 、 DOWEX (H⁺ form) 作用下， 以 四氢呋喃 、 甲醇 、 水 为溶剂， 反应 6.0h， 以99%的产率得到(1R,2S,3R,5R)-3-氨基-5-(羟甲基)环戊烷-1,2-二醇
  参考文献：
  名称：

  Variable Strategy toward Carbasugars and Relatives. 4.¹ Viable Access to (4a-Carbapentofuranosyl)amines, (5a-Carbahexopyranosyl)amines, and Amino Acids Thereof

  摘要：

  A chiral, divergent synthesis of two carbafuranosylamines, I and 2, two carbapyranosylamines, 3 and 4, two carbafuranosylamino acids, 5 and 6, and two carbapyranosylamino acids, 7 and 8, has been achieved. Highlights of the procedure include the following: a diastereoselective crossed vinylogous Mukaiyama aldol coupling between N-(tert-butoxycarbonyl)-2-[(tert-butyldimethylsilyl)oxy]pyrrole (TBSOP, 9) and 2,3-O-isopropylidene-D-glyceraldehyde (10) for the assembly of the target compound carbon backbone; a high-yielding silylative cycloaldolization that gives the cyclopentanoid and cyclohexanoid motifs; and a reductive or hydrolytic breakage of the lactam C(O)-N link to liberate the carbasugar and install the desired pseudo-anomeric amine and the hydroxymethyl or carboxyl functionalities. The sequences leading to trans-configured carbafuranosyl compounds 1 and 5 and carbapyranosyl compounds 3 and 7 were 12- and 13-step processes, with overall yields of 34%, 35%, 17%, and 16%. Cis-configured isomers 2, 4, 6, and 8 were obtained only in minor yields.

  DOI：

  10.1021/jo0257905
• 作为产物：
  描述：

  (-)-文斯内酯 在 咪唑 、 甲醇 、 4-二甲氨基吡啶 、 sodium tetrahydroborate 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 5.0h， 生成 (1R,2S,3R,4R)-[2,3-bis-(tert-butyldimethylsilanyloxy)-4-hydroxymethyl-cyclopentyl]carbamic acid tert-butyl ester
  参考文献：
  名称：

  含有碳环核糖核苷酸的RNA

  摘要：

  为了评估含碳环核糖核苷的寡核苷酸疗法的目标，我们开发了所有四种碳环核糖核苷酸亚磷酰胺和尿苷固体支持构件的方便、可扩展的合成方法。晶体学分析证实了这些结构单元的构型和立体化学。一条链中具有碳环 RNA (car-RNA) 修饰的双链体的热力学稳定性低于具有未修饰 RNA 的双链体。然而，圆二色光谱表明，含有 car-RNA 的双链体的整体构象与未修饰的双链体相似。

  DOI：

  10.1021/acs.orglett.1c03936

文献信息

• RNAs Containing Carbocyclic Ribonucleotides
  作者：Masaaki Akabane-Nakata、Tyler Chickering、Joel M. Harp、Mark K. Schlegel、Shigeo Matsuda、Martin Egli、Muthiah Manoharan

  DOI：10.1021/acs.orglett.1c03936

  日期：2022.1.21

  of evaluation of carbocyclic ribonucleoside-containing oligonucleotide therapeutics, we developed convenient, scalable syntheses of all four carbocyclic ribonucleotide phosphoramidites and the uridine solid-support building block. Crystallographic analysis confirmed configuration and stereochemistry of these building blocks. Duplexes with carbocyclic RNA (car-RNA) modifications in one strand were less

  为了评估含碳环核糖核苷的寡核苷酸疗法的目标，我们开发了所有四种碳环核糖核苷酸亚磷酰胺和尿苷固体支持构件的方便、可扩展的合成方法。晶体学分析证实了这些结构单元的构型和立体化学。一条链中具有碳环 RNA (car-RNA) 修饰的双链体的热力学稳定性低于具有未修饰 RNA 的双链体。然而，圆二色光谱表明，含有 car-RNA 的双链体的整体构象与未修饰的双链体相似。
• Variable Strategy toward Carbasugars and Relatives. 4.¹ Viable Access to (4a-Carbapentofuranosyl)amines, (5a-Carbahexopyranosyl)amines, and Amino Acids Thereof
  作者：Gloria Rassu、Luciana Auzzas、Luigi Pinna、Vincenzo Zambrano、Franca Zanardi、Lucia Battistini、Lucia Marzocchi、Domenico Acquotti、Giovanni Casiraghi

  DOI：10.1021/jo0257905

  日期：2002.7.1

  A chiral, divergent synthesis of two carbafuranosylamines, I and 2, two carbapyranosylamines, 3 and 4, two carbafuranosylamino acids, 5 and 6, and two carbapyranosylamino acids, 7 and 8, has been achieved. Highlights of the procedure include the following: a diastereoselective crossed vinylogous Mukaiyama aldol coupling between N-(tert-butoxycarbonyl)-2-[(tert-butyldimethylsilyl)oxy]pyrrole (TBSOP, 9) and 2,3-O-isopropylidene-D-glyceraldehyde (10) for the assembly of the target compound carbon backbone; a high-yielding silylative cycloaldolization that gives the cyclopentanoid and cyclohexanoid motifs; and a reductive or hydrolytic breakage of the lactam C(O)-N link to liberate the carbasugar and install the desired pseudo-anomeric amine and the hydroxymethyl or carboxyl functionalities. The sequences leading to trans-configured carbafuranosyl compounds 1 and 5 and carbapyranosyl compounds 3 and 7 were 12- and 13-step processes, with overall yields of 34%, 35%, 17%, and 16%. Cis-configured isomers 2, 4, 6, and 8 were obtained only in minor yields.