α-L-digitoxose | 138458-67-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: α-L-digitoxose
• 英文别名: L-digitoxose；(2R,4R,5R,6S)-6-methyloxane-2,4,5-triol
• CAS: 138458-67-0
• 化学式: C₆H₁₂O₄
• 分子量: 148.159
• InChiKey: FDWRIIDFYSUTDP-KCDKBNATSA-N

物化性质

• 沸点：
  320.1±42.0 °C(Predicted)
• 密度：
  1.366±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.1
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  69.9
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  rel-(5R,6S)-5,6-Dihydro-5-hydroxy-6-methyl-2H-pyran-2-one 在 吡啶 、 sodium hypochlorite 、 sodium tetrahydroborate 、 二苯基二硒醚 、 sodium acetate 、 sodium cyanoborohydride 、 溶剂黄146 作用下， 以 异丙醇 为溶剂， 反应 2.0h， 生成 α-L-digitoxose
  参考文献：
  名称：

  A divergent strategy for constructing a sugar library containing 2,6-dideoxy sugars and uncommon sugars with 4-substitution

  摘要：

  A practical strategy has been developed for delivering 2,6-dideoxy sugars and uncommon sugars with 4-substitution. This strategy employed Ferrier rearrangement reaction and BF3 center dot OEt2-induced peroxidation to construct key intermediates 2,3-unsaturated glycosides and alpha,beta-unsaturated lactones from peracetyl rhamnal. After further derivatization, four uncommon sugars with 4-substitution and eight uncommon sugar units with 3,4-disubstitution were successfully synthesized. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2007.07.019

文献信息

• De novo highly stereocontrolled synthesis of 2,6-dideoxy sugars by use of 2,6-anhydro-2-thio sugars
  作者：Kazunobu Toshima、Takehito Yoshida、Satsuki Mukaiyama、Kuniaki Tatsuta

  DOI：10.1016/0008-6215(91)89016-9

  日期：1991.12

  ribo -hexopyranose ( l -digitoxose) ( 33 ) have been stereospecifically synthesized through a highly stereoselective addition of a nucleophilic reagent to the C-3 carbonyl groups of methyl 2,6-anhydro-4- O -benzyl-2-thio-α- l - arabino -hexopyranosid-3-ulose ( 11 ) or methyl 2,6-anhydro-4- O -benzyl-2-thio-β- l - arabino -hexopyranosid-3-ulose ( 12 ) possessing 2,6-anhydro-2-thio structures. Anomers 11

  摘要代表性的2,6-二脱氧糖，1-cladinose（1），1-mycarose（2），1-oleandrose（3），1-olivose（4）及其所有C-3差向异构体2,6-双脱氧-3-C-甲基-3-O-甲基-1-阿拉伯糖-己糖（26），2,6-二脱氧-3-C-甲基-1-戊糖（1-寡果糖）（27），2通过立体定向合成了，6-二脱氧-3-O-甲基-1-核糖-己糖（l-cymarose）（32）和2,6-二脱氧-1-核糖-己糖（l-digitoxose）（33）。将亲核试剂高度立体选择性地加成到甲基2,6-脱水4-O-苄基-2-硫代-α-1-阿拉伯糖基-己吡喃糖苷-3-ulose（11）或甲基2的C-3羰基上具有2，6-脱水-2-硫代结构的1，6-脱水-4-O-苄基-2-硫代-β-1-阿拉伯糖-己吡喃糖苷-3-果糖（12）。异构体11和12均以立体控制的方式通过用Lewis处理常见的中间体甲基2
• On the steric course of the addition of diallylzinc onto α,β-dialkoxy chiral carbonyl compounds: stereospecific synthesis of 2,6-dideoxysugars of the -series
  作者：Giovanni Fronza、Claudio Fuganti、Piero Grasselli、Giuseppe Pedrocchi-Fantoni、Carlo Zirotti

  DOI：10.1016/s0040-4039(00)88370-7

  日期：1982.1

  6-dideoxy sugars -digitoxose (14), 2-deoxy--fucose (15) and -mycarose (16) from the C4 and C5 chiral synthons (1), (2) and (3), through the intermediacy of the C7 adducts (4), (8) and (12), obtained by addition of diallylzinc onto (1), (2) and (3), is reported.

  由C 4和C 5手性合成子（1），（2）和（3）合成2,6-二脱氧糖-洋地黄糖（14），2-脱氧--岩藻糖（15）和-mycarose（16）。），报道了通过在（1），（2）和（3）上添加二烯丙基锌而获得的C 7加合物（4），（8）和（12）的中间体。
• Nucleophilic Addition to 2,3-Disubstituted Butanal Derivatives and Their Application to Natural Product Synthesis
  作者：Hidekazu Horie、Hideaki Akaike、Keisuke Kato、Hiroyuki Akita

  DOI：10.1248/cpb.58.1411

  日期：——

  The reaction of 2,3-anti-2-tert-butyldimethylsiloxy-3-substituted butanal derivative [anti-B, (±)-10 and (±)-16] derived from trans-(2,3)-epoxy butanoate (1) with carbon nucleophiles [α-furyl anion, acetate anion, and indium (In)-assisted allyl anion] has been investigated to give selectively the anti-, anti-adduct D. This anti-stereoselection could be explained by the Felkin–Anh transition state model. Thus obtained anti-, anti-adducts (±)-17 and (±)-38 were formally converted to natural products, (±)-asperlin (2) and (±)-olivose (4), respectively. The major anti-, anti-adduct (±)-26 was converted to (±)-digitoxose (3), while the minor anti-, syn-adduct (±)-27 was also converted to (±)-olivose (4). The reaction of (±)-10 with tert-butyl acetate anion gave predominantly afforded the anti-, anti-adduct (±)-23, which was converted to (±)-1,5-dideoxyhexitol (25). Alternately, the reaction of 2,3-syn-2-tert-butyldimethylsiloxy-3-p-methoxyphenoxy butanal derivative [syn-B, (±)-14] derived from trans-(2,3)-epoxy butanoate (1) with carbon nucleophile (In-assisted allyl anion) afforded a ca. 1 : 1 mixture of the syn-, anti-adduct E [(±)-32 or (±)-34] and syn-, syn-adduct F [(±)-33 or (±)-35]. After separation of this mixture, (±)-34 and (±)-35 were separately converted to (±)-oliose (5) and (±)-boivinose (6), respectively.

  2,3-抗-2-叔丁基二甲基硅氧基-3-取代的丁醛衍生物[抗-B,(±)-10和(±)-16]衍生自反式-(2,3)-环氧丁酸酯的反应( 1）与碳亲核试剂[α-呋喃基阴离子、乙酸根阴离子和铟（In）辅助的烯丙基阴离子]进行了研究，以选择性地产生反加合物D。这种反立体选择可以通过Felkin- Anh 过渡状态模型。由此获得的抗-、抗加合物(±)-17和(±)-38分别正式转化为天然产物(±)-asperlin(2)和(±)-olivose(4)。主要的抗、抗加合物 (±)-26 转化为 (±)-洋地黄糖 (3)，而次要的抗、顺加合物 (±)-27 也转化为 (±)-橄榄糖 (4) ）。 (±)-10与乙酸叔丁酯阴离子的反应主要产生反加合物(±)-23，其转化为(±)-1,5-二脱氧己糖醇(25)。或者，由反式-(2,3)-环氧丁酸酯衍生的2,3-syn-2-叔丁基二甲基硅氧基-3-对甲氧基苯氧基丁醛衍生物[syn-B, (±)-14]的反应 (1)与碳亲核试剂（In辅助烯丙基阴离子）提供约。顺式、反式加合物E[(±)-32或(±)-34]和顺式、顺式加合物F[(±)-33或(±)-35]的1:1混合物。分离该混合物后，(±)-34和(±)-35分别转化为(±)-寡糖(5)和(±)-牛维糖(6)。
• Synthesis of 2,6-Dideoxysugars via Ring-Closing Olefinic Metathesis
  作者：Peter R. Andreana、Jason S. McLellan、Yongchen Chen、Peng George Wang

  DOI：10.1021/ol026710m

  日期：2002.10.1

  graphicGrubbs' RuCl2(=CHPh)(PCy3)(2) (catalyst 1) and RuCl2(=CHPh)(PCy3)(IMess) (catalyst 2) complexes have been successfully utilized in the construction of beta,gamma-unsaturated delta-lactones containing various substitution patterns of methyl groups. Asymmetric dihydroxylation followed by reduction leads to 3,4-cis-dihydroxy-2,6-dideoxypyranoses, which have proven to play very important biological roles as key components of natural products.
• A divergent strategy for constructing a sugar library containing 2,6-dideoxy sugars and uncommon sugars with 4-substitution
  作者：Guisheng Zhang、Lei Shi、Qingfeng Liu、Jingmei Wang、Lu Li、Xiaobing Liu

  DOI：10.1016/j.tet.2007.07.019

  日期：2007.9

  A practical strategy has been developed for delivering 2,6-dideoxy sugars and uncommon sugars with 4-substitution. This strategy employed Ferrier rearrangement reaction and BF3 center dot OEt2-induced peroxidation to construct key intermediates 2,3-unsaturated glycosides and alpha,beta-unsaturated lactones from peracetyl rhamnal. After further derivatization, four uncommon sugars with 4-substitution and eight uncommon sugar units with 3,4-disubstitution were successfully synthesized. (c) 2007 Elsevier Ltd. All rights reserved.