1-O-benzyl-D,L-xylitol

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-O-benzyl-D,L-xylitol
• 英文别名: (2S,3R,4R)-5-phenylmethoxypentane-1,2,3,4-tetrol
• 化学式: C₁₂H₁₈O₅
• 分子量: 242.272
• InChiKey: CZOZPSKGPUHUEF-QJPTWQEYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  90.2
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  1-O-benzyl-D,L-xylitol 在 吡啶 、 sodium sulfide 作用下， 以 1,4-二氧六环 、 二甲基亚砜 为溶剂， 反应 1.0h， 生成 2,3-di-O-acetyl-5-O-benzyl-1,4-thioanhydro-arabinitol
  参考文献：
  名称：

  由单苄基化的戊醇和醛糖二硫缩醛双硫代碳酸酯作为双亲电子底物短时间合成羟基化的硫杂环戊烷和亚硒烷环

  摘要：

  1- O-苄基戊糖醇（具有d-阿拉伯糖，d- lyxo，d，l-木糖和d，l-核糖构型）和醛糖二苄基二硫缩醛（具有l-阿拉伯糖，d- lyxo，d-木糖，d-核糖，d -半乳糖，D-葡萄糖和D-甘露配置）通过与二咪唑基硫酮（IM反应中直接和有效地转化为它们的环状二硫代羰基碳酸衍生物（61-73％）2在1,4-二恶烷CS）。这些双亲电子加合物与Na 2 S·9H 2 O或Se / NaBH发生区域选择性反应4可以短区域合成（47–65％），以良好的产率将区域选择性地引入相应的硫杂环戊烷和亚硒烷环。

  DOI：

  10.1016/j.tet.2005.05.008
• 作为产物：
  描述：

  5-benzyloxy-1,2:3,4-di-O-isopropylidenexylitol 在 三氟乙酸 作用下， 以 水 为溶剂， 反应 1.5h， 以51%的产率得到1-O-benzyl-D,L-xylitol
  参考文献：
  名称：

  Ophthamological drugs

  摘要：

  本发明一般涉及眼科药物。更具体地，本发明涉及一种修改（衍生化）眼科药物的方法，以增加它们通过角膜的渗透性。本发明还涉及根据本方法修改（衍生化）的药物，以及将其用于治疗与眼内压升高相关的疾病，特别是青光眼。

  公开号：

  US20060135609A1

文献信息

• OPHTHAMOLOGICAL DRUGS
  申请人：Toone Eric J.

  公开号：US20090318542A1

  公开（公告）日：2009-12-24

  The present invention relates generally to ophthamological drugs. More specifically, the invention relates to a method of modifying (derivatizing) ophthamological drugs so as to increase their penetration through the cornea. The invention also relates to drugs modified (derivatized) in accordance with the instant method and to the use of same in treating conditions associated with elevated intraocular pressure, particularly, glaucoma.

  本发明通常涉及眼科药物。更具体地说，本发明涉及一种改性（衍生化）眼科药物的方法，以增加它们穿过角膜的渗透性。本发明还涉及按照本方法改性（衍生化）的药物，以及将其用于治疗与眼内压升高有关的疾病，特别是青光眼。
• Versatile use of bis-cyclic thionocarbonates of polyols as bis-electrophilic intermediates. Synthesis of polyhydroxylated thioanhydropentitols with d,l-arabino, l-ribo and l-xylo, and thioanhydroaldoses with d-lyxo, l-ribo, d-xylo, d-allo, d-gulo and d-altro configurations
  作者：Alain Danquigny、Mohammed Benazza、Sylvain Protois、Gilles Demailly

  DOI：10.1016/j.tetlet.2004.03.197

  日期：2004.5

  1-O-Benzylpentitols (with D-arabino, D-, D,L-xylo and D,L-ribo configurations) and aldose dibenzyldithioacetals (with L-arabino, D-lyxo, D-xylo, D-ribo, D-galacto, D-gluco and D-manno configurations) were directly and efficiently transformed into their cyclic bis-thionocarbonate derivatives (61-73%) by reaction with diimidazolyl thione (Im(2)CS) in 1,4-dioxane. These bis-electrophilic adducts react regioselectively with Na2S-9H(2)O to lead to 1,4-, 2,5- or 3,6-thioanhydroalditol derivatives in good yields (47-65%). Thioanhydro configurations D,L-arabino, L-ribo and L-xylo from pentitols, and D-lyxo, L-ribo, D-xylo, D-allo, D-gulo and D-altro from aldoses were obtained. (C) 2004 Elsevier Ltd. All rights reserved.
• Heterocyclisation of free or partially protected alditols via their bis-cyclic sulfate derivatives. Versatile synthesis of aza and thiodeoxyanhydroalditol with erythro, threo, arabino, gulo, talo or manno configuration
  作者：Virginie Glaçon、Mohammed Benazza、Daniel Beaupère、Gilles Demailly

  DOI：10.1016/s0040-4039(00)00791-7

  日期：2000.6

  The bis-cyclic sulfate derivatives of erythritol (1), D,L-threitol (5), 3,4-di-O-benzyl-D-mannitol (9), 1,2-O-isopropylidene-D-mannitol (14) and 1-O-benzyl-D,L-xylitol (18) were submitted to nucleophilic attack by allylamine or sodium sulfide. In both cases, heterocyclisation occurred and aza or thioanhydrodeoxyalditols were obtained in moderate to good yields (40 to 89%). With compound 9, 1,5-anhydro-5-thio-L-gulitol (12) was obtained as the main product, a result that is in contrast with previous results reported in the literature using bis-epoxide as bielectrophile intermediate.(1) (C) 2000 Published by Elsevier Science Ltd.
• US8642644B2
  申请人：——

  公开号：US8642644B2

  公开（公告）日：2014-02-04
• Ophthamological drugs
  申请人：Toone J. Eric

  公开号：US20060135609A1

  公开（公告）日：2006-06-22

  The present invention relates generally to ophthamological drugs. More specifically, the inventon relates to a method of modifying (derivatizing) ophthamological drugs so as to increase their penetration through the cornea. The invention also relates to drugs modified (derivatized) in accordance with the instant method and to the use of same in treating conditions associated with elevated intraocular pressure, particularly, glaucoma.

  本发明一般涉及眼科药物。更具体地，本发明涉及一种修改（衍生化）眼科药物的方法，以增加它们通过角膜的渗透性。本发明还涉及根据本方法修改（衍生化）的药物，以及将其用于治疗与眼内压升高相关的疾病，特别是青光眼。