(3aR,7aR)-5-benzyl-2,2-dimethyl-7-methylenehexahydro-[1,3]dioxolo[4,5-c]pyridine | 319924-33-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: (3aR,7aR)-5-benzyl-2,2-dimethyl-7-methylenehexahydro-[1,3]dioxolo[4,5-c]pyridine
• 英文别名: (3aR,7aR)-5-Benzyl-2,2-dimethyl-7-methylenehexahydro[1,3]dioxolo[4,5-c]pyridine；(3aR,7aR)-5-benzyl-2,2-dimethyl-7-methylenehexahydro[1,3]dioxo[4,5-c]pyridine；(3aR,7aR)-5-benzyl-2,2-dimethyl-7-methylidene-3a,4,6,7a-tetrahydro-[1,3]dioxolo[4,5-c]pyridine
• CAS: 319924-33-9
• 化学式: C₁₆H₂₁NO₂
• 分子量: 259.348
• InChiKey: FALPIROUPHVPBJ-HUUCEWRRSA-N

物化性质

• 沸点：
  341.6±42.0 °C(Predicted)
• 密度：
  1.11±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  21.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (3aR,7aR)-5-benzyl-2,2-dimethyl-7-methylenehexahydro-[1,3]dioxolo[4,5-c]pyridine 在 9-borabicyclo[3.3.1]nonane dimer 、 sodium hydroxide 、 双氧水 作用下， 以 四氢呋喃 为溶剂， 反应 24.0h， 以45%的产率得到[(3aR,7R,7aR)-5-Benzyl-2,2-dimethylhexahydro[1,3]dioxolo[4,5-c]pyridin-7-yl]methanol
  参考文献：
  名称：

  A Novel Approach to Both the Enantiomers of Potent Glycosidase Inhibitor Isofagomine via PET-Promoted Cyclization of 1-[Benzyl(trimethylsilyl-methyl)amino]-1,4,5-trideoxy-2,3-O-(1-methylethylidene)-threo-pent-4-ynitol

  摘要：

  在合成 1-N-iminosugar 型糖苷酶抑制剂时，利用 PET 生成的δ-三甲基硅甲胺自由基阳离子环化到系链炔基的方法解决了在立体中心旁生成氨基甲基的问题。(+)- 和 (-)-isofagomine 的合成证明了这一方法的成功，isofagomine 是一种极其有效的 1-N-iminosugar 类δ-糖苷酶抑制剂。

  DOI：

  10.1055/s-2001-15063
• 作为产物：
  描述：

  [(4R,5R)-5-(tert-butyldimethylsilyloxymethyl)-2,2-dimethyl-1,3-dioxolan-4-yl]ethyne 在 四溴化碳 、 萘-1,4-二腈 、 四丁基氟化铵 、 四丁基碘化铵 、 potassium carbonate 、 三苯基膦 作用下， 以 四氢呋喃 、 二氯甲烷 、 异丙醇 、 乙腈 为溶剂， 反应 102.5h， 生成 (3aR,7aR)-5-benzyl-2,2-dimethyl-7-methylenehexahydro-[1,3]dioxolo[4,5-c]pyridine
  参考文献：
  名称：

  A Novel Approach to Both the Enantiomers of Potent Glycosidase Inhibitor Isofagomine via PET-Promoted Cyclization of 1-[Benzyl(trimethylsilyl-methyl)amino]-1,4,5-trideoxy-2,3-O-(1-methylethylidene)-threo-pent-4-ynitol

  摘要：

  在合成 1-N-iminosugar 型糖苷酶抑制剂时，利用 PET 生成的δ-三甲基硅甲胺自由基阳离子环化到系链炔基的方法解决了在立体中心旁生成氨基甲基的问题。(+)- 和 (-)-isofagomine 的合成证明了这一方法的成功，isofagomine 是一种极其有效的 1-N-iminosugar 类δ-糖苷酶抑制剂。

  DOI：

  10.1055/s-2001-15063

文献信息

• A new access to polyhydroxy piperidines of the azasugar class: synthesis and glycosidase inhibition studies
  作者：Ganesh Pandey、Manmohan Kapur、M. Islam Khan、Sushama M. Gaikwad

  DOI：10.1039/b307455b

  日期：——

  A new synthetic strategy has been devised to access a variety of polyhydroxylated piperidines belonging to the azasugar class of glycosidase inhibitors. The key precursor (3aR, 7aR)-5-benzyl-2,2-dimethyl-7-methylenehexahydro[1,3]dioxo[4,5-c]pyridine is obtained by photoinduced electron transfer (PET) cyclization of the corresponding α-trimethylsilylmethylamine radical cation to the tethered acetylene functionality. The new molecules have been evaluated for inhibitory properties for certain β-glycosidases and have been found to be moderate to weak inhibitors of the enzymes under study.

  一种新的合成策略被设计用于获得属于糖氨基酸酶抑制剂类的多羟基化哌啶的多样性。关键前驱体 (3aR, 7aR)-5-苄基-2,2-二甲基-7-亚烯基六氢[1,3]二氧杂[4,5-c]吡啶是通过光诱导电子转移（PET）环化反应获得的，该反应涉及相应的α-三甲基硅基甲基氨基自由基阳离子与连接的炔烃功能团。新分子的抑制特性已被评估，结果发现它们对某些β-糖苷酶的抑制作用为中等到弱。
• Synthesis of polyhydroxy piperidines and their analogues: a novel approach towards selective inhibitors of α-glucosidase
  作者：Ganesh Pandey、Kishor Chandra Bharadwaj、M. Islam Khan、K. S. Shashidhara、Vedavati G. Puranik

  DOI：10.1039/b804278k

  日期：——

  been synthesized from precursors 18a and 18b, obtained in both enantiomeric forms from d-ribose. Out of these polyhydroxy piperidine azasugars, 22, 39 and 20 were found to be potent as well as selective inhibitors of alpha-glucosidase with K(i) values ranging as low as 1.07 microM, 16.4 microM, and 88.2 microM, respectively. Replacement of the hydroxy methylene moiety of (K(i) 33% at 1 mM) by an amino

  从前体18a和18b合成了各种多羟基哌啶氮杂糖，它们是从d-核糖以两种对映体形式获得的。在这些多羟基哌啶氮杂糖中，发现22、39和20是有效的α-葡萄糖苷酶以及选择性抑制剂，其K（i）值分别低至1.07 microM，16.4 microM和88.2 microM。氨基亚甲基部分（32，K（i）36.8 microM）取代了（K（i）在1 mM处33％的羟基亚甲基部分）显示出活性显着提高（几乎30倍）。此外，通过用十二烷基进行N-烷基化来增加的亲脂性（36），其活性增加了三倍（K（i）217 microM到K（i）72.3 microM）。
• Design and Development of a Common Synthetic Strategy for a Variety of 1-<i>N</i>-Iminosugars
  作者：Ganesh Pandey、Manmohan Kapur

  DOI：10.1021/ol026711e

  日期：2002.10.1

  [GRAPHICS]A new synthetic strategy has been developed for a general approach toward the synthesis of a variety of 1-N-iminosugar-type glycosidase inhibitors utilizing precursors developed by the PET-mediated cyclization of alpha-trimethylsilylmethylamine radical cation to a tethered pi-functionality.
• A general strategy towards the synthesis of 1-N-iminosugar type glycosidase inhibitors: demonstration by the synthesis of d- as well as l-glucose type iminosugars (isofagomines)
  作者：Ganesh Pandey、Manmohan Kapur

  DOI：10.1016/s0040-4039(00)01553-7

  日期：2000.11

  Both enantiomers of isofagomine, the potent glycosidase inhibitor of a type 1-N-iminosugar have been synthesized by the intramolecular cyclization of the PET generated alpha -trimethylsilylmethylamine radical cation with the appropriate tethered acetylene moiety. (C) 2000 Published by Elsevier Science Ltd.
• A Novel Approach to Both the Enantiomers of Potent Glycosidase Inhibitor Isofagomine via PET-Promoted Cyclization of 1-[Benzyl(trimethylsilyl-methyl)amino]-1,4,5-trideoxy-2,3-<b><i>O</i></b>-(1-methylethylidene)-<b><i>threo</i></b>-pent-4-ynitol
  作者：Ganesh Pandey、Manmohan Kapur

  DOI：10.1055/s-2001-15063

  日期：——

  The cyclization of PET-generated α-trimethylsilylmethylamine radical cation to a tethered acetylene moiety has been exploited to solve the problem of the generation of an aminomethyl group next to a stereocenter in the synthesis of 1-N-iminosugar type glycosidase inhibitors. Its success is demonstrated by the synthesis of (+)- as well as (-)-isofagomine, an extremely potent β-glucosidase inhibitor of the 1-N-iminosugar class.

  在合成 1-N-iminosugar 型糖苷酶抑制剂时，利用 PET 生成的δ-三甲基硅甲胺自由基阳离子环化到系链炔基的方法解决了在立体中心旁生成氨基甲基的问题。(+)- 和 (-)-isofagomine 的合成证明了这一方法的成功，isofagomine 是一种极其有效的 1-N-iminosugar 类δ-糖苷酶抑制剂。