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Benzyl 2,4-di-O-benzyl-α-L-rhamnopyranoside | 62774-11-2

中文名称
——
中文别名
——
英文名称
Benzyl 2,4-di-O-benzyl-α-L-rhamnopyranoside
英文别名
Benzyl-2,4-di-O-benzyl-α-L-rhamnopyranosid;(2S,3R,4R,5R,6R)-2-methyl-3,5,6-tris(phenylmethoxy)oxan-4-ol
Benzyl 2,4-di-O-benzyl-α-L-rhamnopyranoside化学式
CAS
62774-11-2
化学式
C27H30O5
mdl
——
分子量
434.532
InChiKey
TXMFPWVPIQMTTK-KEKNZTIFSA-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):
    4
  • 重原子数:
    32
  • 可旋转键数:
    9
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    57.2
  • 氢给体数:
    1
  • 氢受体数:
    5

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Syntheses of<i>O</i>-β-D-Mannosyl-(1→4)-<i>O</i>-α-D-mannosyl-(1→3)-L-rhamnose and<i>O</i>-(2-Acetamido-2-deoxy-β-D-mannosyl)-(1→4)-<i>O</i>-α-D-galactosyl-(1→4)-D-galactose via In-situ-activating Glycosylation Using 2-<i>O</i>-Acetyl-3,4,6-tri-<i>O</i>-benzyl-D-glucose
    作者:Shinkiti Koto、Yoshika Shinoda、Motoko Hirooka、Akiko Sekino、Sachiko Ishizumi、Mutsuko Koma、Chieko Matuura、Naoko Sakata
    DOI:10.1246/bcsj.76.1603
    日期:2003.8
    D-mannopyranosyl-(1→3)-L-rhamnopyranose, a trisaccharide including a repeating unit of the O-specific polysaccharide (OSP) of Bulkholderia vietnamiensis strain LMG 6988, and O-(2-acetamido-2-deoxy-β-D-mannopyranosyl)-(1→4)-O-α-D-galactopyranosyl-(1→4)-D-galactopyranose, a trisaccharide including a repeating unit of OSP of Acinetobactor baumannii serogroup O18, were synthesized by means of in-situ-activating
    O-β-D-甘露糖基-(1→4)-O-α-D-甘露糖基-(1→3)-L-鼠李糖,一种三糖,包括越南Bulkholderia vietnamiensis的O-特异性多糖(OSP)的重复单元LMG 6988 菌株,和 O-(2-乙酰基-2-脱氧-β-D-甘露糖基)-(1→4)-O-α-D-喃半乳糖基-(1→4)-D-喃半乳糖,一种三糖,包括使用 2-O-乙酰基-3,4,6-三-O-苄基-D-吡喃葡萄糖 (2ATBG) 和试剂通过原位激活糖基化合成鲍曼不动杆菌血清组 O18 的 OSP 重复单元对硝基苯磺酰氯三氟甲磺酸1,8-二氮杂双环[5.4.0]十一碳-7-烯的混合物,以及相关系统。2ATBG、烯丙基 2,3,6-三-O-苄基-α-D-喃半乳糖苷、苄基 2,3,6-三-O-苄基-α-D-喃半乳糖苷和 2-叠氮基-3 的新合成,描述了 4,6-三-O-苄基-2-脱氧-D-甘露糖
  • Regio- and chemoselective reductive cleavage of 4,6-O-benzylidene-type acetals of hexopyranosides using BH3·THF–TMSOTf
    作者:Katalin Daragics、Péter Fügedi
    DOI:10.1016/j.tetlet.2009.03.194
    日期:2009.6
    cyclic acetals of carbohydrates undergo efficient reductive ring opening using BH3·THF and a catalytic amount of TMSOTf at room temperature. 4,6-O-Benzylidene-hexopyranosides afford the corresponding 4-O-benzyl ethers exclusively, in high yields. Other benzylidene-type acetals, such as naphthylmethylene and 4-methoxybenzylidene acetals are also cleaved with the same reagent. The conversions are highly regio-
    碳水化合物的亚苄基型环状缩醛在室温下使用BH 3 ·THF和催化量的TMSOTf进行有效的还原性开环。4,6- ø -亚苄基- hexopyranosides得到相应的4- ø -苄基醚排他地,以高收率。其他亚苄基型缩醛,例如基亚甲基和4-甲氧基亚苄基缩醛也可以用相同的试剂裂解。该转化具有高度的区域选择性和立体选择性,并以优异的产率提供了苄基型醚。
  • Synthesis of trisaccharide methyl glycosides related to fragments of the capsular polysaccharide of Streptococcus pneumoniae type 18C
    作者:Angusta M.P. van Steijn、Johannis P. Kamerling、Johannes F.G. Vliegenthart
    DOI:10.1016/s0008-6215(00)90498-1
    日期:1992.3
    glucopyranosyl-beta-D-galactopyranoside 3-(sn-glycer-3-yl sodium phosphate) (4), which are trisaccharide methyl glycosides related to fragments of the capsular polysaccharide of Streptococcus pneumoniae type 18C ([----4)-beta-D- Glcp-(1----4)-[alpha-D-Glcp-(1----2)]-[Glycerol-(1-P----3)]-beta-D-Galp - (1----4)-alpha-D-Glcp-(1----3)-alpha-L-Rhap-(1----]n). Ethyl 4-O-acetyl-2,3,6-tri-O-benzyl-1-thio-be
    4-二-O-苄基-α-L-鼠李喃糖苷(6)。产物脱乙酰基,然后与2,4,6-三-O-乙酰基-3-O-烯丙基-α-D-喃并喃糖基三酰亚胺酸酯(18)缩合,得到苄基2,4-二-O-苄基-3 -O- [2,3,6-三-O-苄基-4-O-(2,4,6-三-O-乙酰基-3-O-烯丙基-β-D-喃半乳糖基)-α-D-吡喃葡萄糖基]-α-L-鼠李糖喃糖苷(19)。乙酰化19,然后进行甲基化,去甲酰化(---- 22),然后进一步脱保护,得到1.甲基2,4-二-O-苄基-3-O- [2,3,6-tri-O的缩合-苄基-4-O-(2,4,6-三-O-乙酰基-β-D-喃半乳糖基)-α-D-喃糖基]-α-L-鼠李糖喃糖苷(22)与1,2-二-O -苄基-sn-甘油3-(三乙基膦)(24),然后氧化和脱保护,得到2。2,3,4,6-四-O-苄基-1-代-β-乙基的缩合D-吡喃葡萄糖
  • Synthesis of structural elements of the capsular polysaccharides of Streptococcus pneumoniae types 6A and 6B
    作者:Ted M. Slaghek、Anita H. van Oijen、Augustinus A.M. Maas、Johannis P. Kamerling、Johannes F.G. Vliegenthart
    DOI:10.1016/0008-6215(90)84051-u
    日期:1990.10
    copyranosyl-(1----3)- O-alpha-L-rhamnopyranosyl-(1----4)-D-ribitol (27), which are structural elements of the capsular polysaccharides of Streptococcus pneumoniae types 6A and 6B ([----2)-alpha-D-Galp-(1----3)-alpha-D-Glcp-(1----3)-alpha-L-Rhap- (1----X)- D-Rib-ol-(5-P----]n; 6A X = 3, 6B X = 4), have been synthesised. Ethyl 3-O-allyl-2,4,6-tri-O-benzyl-1-thio-beta-D-glucopyranoside (3) was coupled
    O-alpha-d-Glucopyranosyl-(1 ---- 3)-alpha,beta-L-鼠李喃糖(15),O-alpha-D-喃半乳糖基-(1 ---- 3)-O-alpha-D -葡萄糖基-(1 ---- 3)-α-α,β-L-鼠李糖喃糖(17),O-α-D-喃糖基-(1 ---- 3)-O-α-D-吡喃葡糖基-( 1 ---- 3)-O-α-L-鼠李喃糖基-(1 ---- 3)-D-核糖醇(23)和O-α-D-半乳糖喃糖基-(1 ---- 3)- O-α-D-吡喃葡萄糖基-(1 ---- 3)-O-α-L-鼠李糖喃糖基-(1 ---- 4)-D-核糖醇(27),它们是荚膜多糖的结构成分肺炎链球菌6A和6B型([---- 2] -alpha-D-Galp-(1 ---- 3)-alpha-D-Glcp-(1 ---- 3)-alpha-L-Rhap -已经合成了-(1
  • Synthesis, and carbon-13 n.m.r. study, of O-α-l-rhamnopyranosyl-(1→3)-O-α-l-rhamnopyranosyl-(1→2)-l-rhamnopyranose and O-α-l-rhamnopyranosyl-(1→3)-O-α-l-rhamnopyranosyl (1→3)-l-rhamnopyranose, constituents of bacterial, cell-wall polysaccharides
    作者:Vince Pozsgay、Pál Nánási、András Neszmélyi
    DOI:10.1016/s0008-6215(00)85921-2
    日期:1981.4
    hydrogenolysis, With benzyl 2,3,4-tri- O -benzyl-β- d -galactopyranoside, compound 18 gave an ≈3:2 mixture of benzyl 2,3,4-tri- O -benzyl-6- O -[2,4-di- O -acetyl-3- O -(2,3,4-tri- O -acetyl-α- l -rhamnopyranosyl)-α- l -rhamnopyranosyl]-β- d -galactopyranoside and 4- O -acetyl-3- O -(2,3,4-tri- O -acetyl-α- l -rhamnopyranosyl)-β- l -rhamnopyranose 1,2-(1,2,3,4-tetra- O -benzyl-β- d -galactopyranose-6-yl (orthoacetate)
    摘要通过苄基2,4-( 7)和3,4-二-O-苄基-α-1-鼠李糖喃糖苷(8)与2,3,4-三-O-乙酰基-α-1-鼠李糖喃糖基化物,然后脱保护。通过与8和7反应,得到19的过-乙酰基α-化物(18),得到标题三糖的保护衍生物(分别为25和23),通过Zemplen脱乙酰基化和催化得到25和23。氢解,用苄基2,3,4-三-O-苄基-β-d-喃半乳糖苷,化合物18得到≈2:3的苄基2,3,4-三-O-苄基-6-O-[混合物] 2,4-二-O-乙酰基-3-O-(2,3,4-三-O-乙酰基-α-1-鼠李糖喃糖基)-α-1-l-鼠李糖喃糖基]-β-d-喃半乳糖苷和4-O -乙酰-3-O-(2,3,游离α-1-rhamnopyranose在HO-2或-3处由α-1-rhamnopyranosylation诱导的α-碳原子下场位移为7.4-8.2 ppm,比(还原端)鼠李糖高约1
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