cholesteryl 2,3,4,6-tetra-O-benzyl-D-glucopyranoside | 208523-33-5

• 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: cholesteryl 2,3,4,6-tetra-O-benzyl-D-glucopyranoside
• 英文别名: cholesteryl 2,3,4,6-tetra-O-benzyl-α-D-glucopyranoside；cholesteryl α- and β-2,3,4,6-tetra-O-benzyl-D-glucosides；(3R,4S,5R,6R)-2-[[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxane
• CAS: 208523-33-5
• 化学式: C₆₁H₈₀O₆
• 分子量: 909.303
• InChiKey: DJWSRTRNMRPKQS-HYASCRRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.5
• 重原子数：
  67
• 可旋转键数：
  20
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  55.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  1,2,3,4,6-戊-O-苯甲酰基-D-吡喃葡萄糖苷 在 甲醇 、 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三氟甲磺酸三甲基硅酯 、 sodium methylate 、 氟化氢吡啶 、 二异丙胺 、 三苯基膦 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 13.0h， 生成 cholesteryl 2,3,4,6-tetra-O-benzyl-D-glucopyranoside
  参考文献：
  名称：

  ortho-(Methyltosylaminoethynyl)benzyl glycosides as new glycosyl donors for latent-active glycosylation

  摘要：

  一个新的糖基化协议以ortho-(甲基对甲苯磺酰氨基乙炔基)苄基糖苷作为供体被披露。

  DOI：

  10.1039/c5cc05651a

文献信息

• Propargyl Glycosides as Stable Glycosyl Donors:  Anomeric Activation and Glycoside Syntheses
  作者：Srinivas Hotha、Sudhir Kashyap

  DOI：10.1021/ja062425c

  日期：2006.8.1

  The advantages of stable glycosyl donors for saccharide coupling are many, and we describe herein the utility of propargyl glycosides for anomeric activation and glycoside synthesis exploiting the alkynophilicity of AuCl3. Various aglycones were reacted with propargyl glycosides, resulting in the formation of an α,β-mixture of glycosides and disaccharides in good yields.

  用于糖偶联的稳定糖基供体的优点有很多，我们在本文中描述了炔丙基糖苷在利用 AuCl 3 的亲炔性进行异头活化和糖苷合成中的用途。各种苷元与炔丙基糖苷反应，以良好的产率形成糖苷和二糖的α,β-混合物。
• An efficient construction of 1,2-trans-β-glycosidic linkages capitalizing on glycopyranosyl N,N,N′,N′-tetramethylphosphroamidates as shelf-stable glycosyl donors
  作者：Shun-ichi Hashimoto、Yuki Yanagiya、Takeshi Honda、Hideki Harada、Shiro Ikegami

  DOI：10.1016/s0040-4039(00)92679-0

  日期：1992.6

  stereocontrolled 1,2-trans-β-glycosidation reaction with or without neighbouring group participation has been developed by using benzyl- or benzoyl-protected glycopyranosyl N,N,N',N'-tetramethylphosphoroamidates as shelf-stable glycosyl donors in the presence of trimethylsilyl trifluoromethanesulfonate or boron trifluoride etherate. Several notable features of the present method not observed with the diphenyl

  通过使用苄基或苯甲酰基保护的吡喃葡萄糖基N，N，N'，N'-四甲基磷酰胺基酸酯作为在货架上稳定的糖基供体，已经开发了具有或不具有邻近基团参与的高度立体控制的1,2-反式-β-糖苷化反应。存在三甲基甲硅烷基三氟甲磺酸盐或三氟化硼醚化物。还描述了用磷酸二苯酯法未观察到的本方法的几个显着特征。
• An efficient construction of 1,2-trans-.BETA.-glycosidic linkages via benzyl-protected glycopyranosyl P,P-diphenyl-N-(p-toluenesulfonyl)-phosphinimidates.
  作者：Shun-ichi HASHIMOTO、Takeshi HONDA、Shiro IKEGAMI

  DOI：10.1248/cpb.38.2323

  日期：——

  An efficient 1, 2-trans-glycosidation reaction withon neighbouring group participation has been developed using benzyl-protected P, P-diphenyl-N-(p-toluensulfonyl)phosphinimidates as glycosyl donors in the presence of trimethylsilyl triflate or boron trifluoride etherate.

  使用苄基保护的P,P-二苯基-N-(对甲苯磺酰)膦亚胺为糖基供体，在三甲基硅基三氟甲磺酸酯或三氟化硼乙醚存在下，开发了一种无邻位参与的高效1,2-反式糖苷化反应。
• An efficient glycosylation protocol with glycosyl ortho-alkynylbenzoates as donors under the catalysis of Ph3PAuOTf
  作者：Yao Li、You Yang、Biao Yu

  DOI：10.1016/j.tetlet.2008.04.017

  日期：2008.5

  A new and powerful glycosylation protocol with glycosyl ortho-alkynylbenzoates as donors and Ph3PAuOTf as a promoter is disclosed. The donors are readily available and stable; the glycosidic coupling yields are generally excellent; the promotion system is catalytic, neutral, and orthogonal to the known glycosylation conditions.

  公开了一种新的且功能强大的糖基化方案，其中糖基邻炔基苯甲酸酯为供体，Ph 3 PAuOTf为启动子。捐助者随时可用且稳定；糖苷偶联的产量通常是优异的；促进系统是催化的，中性的，并且与已知的糖基化条件正交。
• Lanthanoid(III) triflates as new glycosylation catalysts. Selective and efficient activation of 1-O-methoxyacetyl sugars
  作者：Junji Inanaga、Yasuo Yokoyama、Takeshi Hanamoto

  DOI：10.1016/s0040-4039(00)73563-5

  日期：1993.4

  The reactions of 1-O-methoxyacetyl sugars with alcohols or thiols were effectively promoted by a catalytic amount of lanthanoid(III) triflates such as Tb(OTf)3, Ho(OTf)3, Tm(OTf)3, and Yb(OTJ)3 to give the corresponding glycosides in good to excellent yields.

  催化量的镧系元素（III）三氟甲磺酸酯如Tb（OTf）3，Ho（OTf）3，Tm（OTf）3和Yb（OTJ ）有效地促进了1- O-甲氧基乙酰基糖与醇或硫醇的反应）3以良好至极好的产率得到相应的糖苷。