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ethyl 3,6-di-O-acetyl-2,4-di-O-benzyl-1-thio-β-D-glucopyranoside | 1246814-19-6

中文名称
——
中文别名
——
英文名称
ethyl 3,6-di-O-acetyl-2,4-di-O-benzyl-1-thio-β-D-glucopyranoside
英文别名
[(2R,3R,4S,5R,6S)-4-acetyloxy-6-ethylsulfanyl-3,5-bis(phenylmethoxy)oxan-2-yl]methyl acetate
ethyl 3,6-di-O-acetyl-2,4-di-O-benzyl-1-thio-β-D-glucopyranoside化学式
CAS
1246814-19-6
化学式
C26H32O7S
mdl
——
分子量
488.602
InChiKey
HXLGYCJYDSODSX-RTJMFUJLSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    3.8
  • 重原子数:
    34
  • 可旋转键数:
    13
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.46
  • 拓扑面积:
    106
  • 氢给体数:
    0
  • 氢受体数:
    8

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    参考文献:
    名称:
    Kaempferol 3- O-(3'',6''- Di- O - E - p-香豆酰基)-β-d-吡喃葡萄糖苷的合成,以糖基邻-炔基苯甲酸酯为供体的黄酮醇3-OH高效糖基化
    摘要:
    Kaempferol 3- O-(3',6''- di - O - E - p-香豆酰基)-β- d-吡喃葡萄糖苷(1),一种苏格兰松树幼苗的最佳代谢产物,可保护深层组织免受伤害。 UV-B代表典型的酰化黄酮醇3- O-糖苷。该化合物是通过两种方法首次合成的。第一种方法从山ka酚开始,其特征在于在常规PTC条件下与糖基溴化物形成黄酮醇3- O-糖苷键。在第二种方法中,可以很容易地从2',4',6'-三羟基苯乙酮和p制备5,7,4'-三-O-苄基-山emp酚-羟基苯甲酸在金(I)络合物的催化下与葡糖吡喃糖基邻己炔基苯甲酸酯偶联,以优异的产率提供所需的3- O-糖苷。还证实了多种配备有2- O-苯甲酰基的糖基邻-己基苯甲酸酯是构建黄酮醇3- O-糖苷键的高效供体。
    DOI:
    10.1021/jo1014189
  • 作为产物:
    描述:
    ethyl 2,4-di-O-benzyl-1-thio-β-D-glucopyranoside乙酸酐吡啶 作用下, 反应 3.0h, 以100%的产率得到ethyl 3,6-di-O-acetyl-2,4-di-O-benzyl-1-thio-β-D-glucopyranoside
    参考文献:
    名称:
    Kaempferol 3- O-(3'',6''- Di- O - E - p-香豆酰基)-β-d-吡喃葡萄糖苷的合成,以糖基邻-炔基苯甲酸酯为供体的黄酮醇3-OH高效糖基化
    摘要:
    Kaempferol 3- O-(3',6''- di - O - E - p-香豆酰基)-β- d-吡喃葡萄糖苷(1),一种苏格兰松树幼苗的最佳代谢产物,可保护深层组织免受伤害。 UV-B代表典型的酰化黄酮醇3- O-糖苷。该化合物是通过两种方法首次合成的。第一种方法从山ka酚开始,其特征在于在常规PTC条件下与糖基溴化物形成黄酮醇3- O-糖苷键。在第二种方法中,可以很容易地从2',4',6'-三羟基苯乙酮和p制备5,7,4'-三-O-苄基-山emp酚-羟基苯甲酸在金(I)络合物的催化下与葡糖吡喃糖基邻己炔基苯甲酸酯偶联,以优异的产率提供所需的3- O-糖苷。还证实了多种配备有2- O-苯甲酰基的糖基邻-己基苯甲酸酯是构建黄酮醇3- O-糖苷键的高效供体。
    DOI:
    10.1021/jo1014189
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文献信息

  • Is an acyl group at O-3 in glucosyl donors able to control α-stereoselectivity of glycosylation? The role of conformational mobility and the protecting group at O-6
    作者:Bozhena S. Komarova、Maria V. Orekhova、Yury E. Tsvetkov、Nikolay E. Nifantiev
    DOI:10.1016/j.carres.2013.11.016
    日期:2014.1
    The stereodirecting effect of a 3-O-acetyl protecting group, which is potentially capable of the remote anchimeric participation, and other protecting groups in 2-O-benzyl glucosyl donors with flexible and rigid conformations has been investigated. To this aim, an array of N-phenyltrifluoroacetimidoyl and sulfoxide donors bearing either 3-O-acetyl or 3-O-benzyl groups in combination with 4,6-di-O-benzyl, 6-O-acyl-4-O-benzyl, or 4,6-O-benzylidene protecting groups was prepared. The conformationally flexible 3-O-acetylated glucosyl donor protected at other positions with O-benzyl groups demonstrated very low or no alpha-stereoselectivity upon glycosylation of primary or secondary acceptors. On the contrary, 3,6-di-O-acylated glucosyl donors proved to be highly alpha-stereoselective as well as the donor having a single potentially participating acetyl group at O-6. The 3,6-di-O-acylated donor was shown to be the best alpha-glucosylating block for the primary acceptor, whereas the best alpha-selectivity of glycosylation of the secondary acceptor was achieved with the 6-O-acylated donor. Glycosylation of the secondary acceptor with the conformationally constrained 3-O-acetyl-4,6-O-benzylidene-protected donor displayed under standard conditions (-35 degrees C) even lower alpha-selectivity as compared to the 3-O-benzyl analogue. However, increasing the reaction temperature essentially raised the alpha-stereoselectivities of glycosylation with both 3-O-acetyl and 3-O-benzyl donors and made them almost equal. The stereodirecting effects of protecting groups observed for N-phenyltrifluoroacetimidoyl donors were also generally proven for sulfoxide donors. (C) 2013 Elsevier Ltd. All rights reserved.
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