O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-N-carbobenzyloxy-L-serine methyl ester | 1423497-10-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-N-carbobenzyloxy-L-serine methyl ester
• 英文别名: methyl (2S)-3-[(2S,4R,5S,6R)-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-2-(phenylmethoxycarbonylamino)propanoate
• CAS: 1423497-10-2
• 化学式: C₃₉H₄₃NO₉
• 分子量: 669.772
• InChiKey: UJYJMKXXXFSLLA-OSWUWPNASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  49
• 可旋转键数：
  19
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  111
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  N-苄氧羰酰基-L-丝氨酸甲酯 、 p-tolyl 3,4,6-tri-O-benzyl-2-deoxy-1-thio-D-glucopyranoside 在 silver trifluoromethanesulfonate 、 对甲苯磺酰氯 作用下， 以 二氯甲烷 为溶剂， 反应 0.25h， 以84%的产率得到O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-N-carbobenzyloxy-L-serine methyl ester
  参考文献：
  名称：

  Highly Stereoselective Glycosyl-Chloride-Mediated Synthesis of 2-Deoxyglucosides

  摘要：

  Cl intermediates: The glycosylation of per-O-benzylated 2-deoxy- and 2,6-dideoxythioglycosides, promoted by the combination of para-toluenesulfenyl chloride (p-TolSCl) and silver triflate (AgOTf), furnished the products in high yields and high stereoselectivity. The glycosyl chloride was the intermediate (see scheme).

  DOI：

  10.1002/chem.201203418

文献信息

• TMSBr-mediated solvent- and work-up-free synthesis of α-2-deoxyglycosides from glycals
  作者：Mei-Yuan Hsu、Yi-Pei Liu、Sarah Lam、Su-Ching Lin、Cheng-Chung Wang

  DOI：10.3762/bjoc.12.164

  日期：——

  The thio-additions of glycals were efficiently promoted by a stoichiometric amount of trimethylsilyl bromide (TMSBr) to produce S-2-deoxyglycosides under solvent-free conditions in good to excellent yields. In addition, with triphenylphosphine oxide as an additive, the TMSBr-mediated direct glycosylations of glycals with a large range of alcohols were highly α-selective.

  甘露糖醛酸盐的硫加成反应可以在无溶剂条件下高效地通过等物量的溴化三甲基硅(TMSBr)催化产生良好至优异收率的S-2-脱氧糖苷。此外，加入三苯基膦氧化物作为添加剂，TMSBr介导的甘露糖醛酸盐与多种醇类的直接糖基化反应具有高度α-选择性。
• Direct Dehydrative Glycosylation Catalyzed by Diphenylammonium Triflate
  作者：Mei-Yuan Hsu、Sarah Lam、Chia-Hui Wu、Mei-Huei Lin、Su-Ching Lin、Cheng-Chung Wang

  DOI：10.3390/molecules25051103

  日期：——

  dehydrative glycosylations of carbohydrate hemiacetals catalyzed by diphenylammonium triflate under microwave irradiation are described. Both armed and disarmed glycosyl-C1-hemiacetal donors were efficiently glycosylated in moderate to excellent yields without the need for any drying agents and stoichiometric additives. This method has been successfully applied to a solid-phase glycosylation.

  描述了在微波辐射下由三氟甲磺酸二苯基铵催化的碳水化合物半缩醛的直接脱水糖基化的方法。武装和解除武装的糖基-C1-半缩醛供体均以中等至优异的产率有效糖基化，无需任何干燥剂和化学计量添加剂。该方法已成功应用于固相糖基化。