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benzyl 2,3-O-isopropylidene-β-D-xylopyranoside | 138515-35-2

中文名称
——
中文别名
——
英文名称
benzyl 2,3-O-isopropylidene-β-D-xylopyranoside
英文别名
(3aR,4R,7R,7aS)-2,2-dimethyl-4-phenylmethoxy-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-ol
benzyl 2,3-O-isopropylidene-β-D-xylopyranoside化学式
CAS
138515-35-2
化学式
C15H20O5
mdl
——
分子量
280.321
InChiKey
LSQMPEDSPJOPML-XJFOESAGSA-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):
    1.44
  • 重原子数:
    20.0
  • 可旋转键数:
    3.0
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.6
  • 拓扑面积:
    57.15
  • 氢给体数:
    1.0
  • 氢受体数:
    5.0

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

  • 作为反应物:
    参考文献:
    名称:
    4-O-β-D-吡喃半乳糖基-D-木糖:一种新的合成方法及其在肠道乳糖酶评估中的应用。
    摘要:
    由苄基2,3-O-异亚丙基-β-D-吡喃吡喃糖苷与2,3,4,6-四-O-苯甲酰基-糖基化制备4-O-β-D-半乳糖吡喃糖基-D-木糖(2)。 α-D-吡喃半乳糖基溴化物和随后的脱保护基。化合物2通过肠乳糖酶在体外水解;Vmax为乳糖的25%,Km为370mM(乳糖为27mM)。口服2只乳鼠导致D-木糖的尿排泄,可通过比色法估算。
    DOI:
    10.1016/s0008-6215(00)90554-8
  • 作为产物:
    参考文献:
    名称:
    4-O-β-D-吡喃半乳糖基-D-木糖:一种新的合成方法及其在肠道乳糖酶评估中的应用。
    摘要:
    由苄基2,3-O-异亚丙基-β-D-吡喃吡喃糖苷与2,3,4,6-四-O-苯甲酰基-糖基化制备4-O-β-D-半乳糖吡喃糖基-D-木糖(2)。 α-D-吡喃半乳糖基溴化物和随后的脱保护基。化合物2通过肠乳糖酶在体外水解;Vmax为乳糖的25%,Km为370mM(乳糖为27mM)。口服2只乳鼠导致D-木糖的尿排泄,可通过比色法估算。
    DOI:
    10.1016/s0008-6215(00)90554-8
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文献信息

  • Stereoselective Synthesis of Regioisomers of Aldobiouronic Acid
    作者:Yasuyuki Kawabata、Yasuo Gama、Isao Kusakabe
    DOI:10.1271/bbb.58.1463
    日期:1994.1
    α-Glucuronidase is a very important enzyme for the complete hydrolysis of plant hemicellulose, but the substrate specificity of the enzyme has not previously been reported. In this connection, the three regioisomers of O-(α-d-glucopyranosyluronic acid)-d-xylose (aldobiouronic acid), 2–O-(α-d-glucopy-ranosyluronic acid)-d-xylose (13), 3–O-(α-d-glucopyranosyluronic acid)-d-xylose (14), and 4–O-(α-d-glucopyranosyluronic acid)-d-xylose (15), were stereoselectively synthesized to clarify the substrate specificity.
    α-葡萄糖醛酸酶是植物半纤维素完全解过程中非常重要的酶,但该酶的底物特异性之前尚未报道。在这方面,立体选择性合成了O-(α-d-葡萄糖喃糖苷醛酸)-d-木糖(醛二糖酸)、2–O-(α-d-葡萄糖喃糖苷醛酸)-d-木糖 (13)、3–O-(α-d-葡萄糖喃糖苷醛酸)-d-木糖 (14) 和4–O-(α-d-葡萄糖喃糖苷醛酸)-d-木糖 (15)的三种区域异构体,以澄清其底物特异性。
  • Synthesis of glycopeptides from the carbohydrate-protein linkage region of proteoglycans
    作者:Sandrine Rio、Jean-Marie Beau、Jean-Claude Jacquinet
    DOI:10.1016/0008-6215(91)89043-f
    日期:1991.10
    non-glycosylated dipeptide segments, and coupling using the mixed-anhydride procedure allowed the construction in high yield of partially or fully glycosylated oligopeptides from the carbohydrate-protein linkage region of proteoglycan.
    将2,3,4,6-四-O-甲酰基-α-D-半乳糖核糖基三酰亚胺苄基2,3-O-异亚丙基-β-D-喃糖苷缩合得到相应的β-(1 ---- 4 )-连接的二糖衍生物,将其转化为2,3-二-O-甲酰基-4-O-(2,3,4,6-四-O-甲酰基-β-D-喃半乳糖基)-α-D-木喃糖基三乙酰亚酸。该糖基供体与一组选择性的C,N-保护的L-丝氨酸-甘酸二肽单元缩合。在糖基化或非糖基化二肽段的C末端或N末端进行选择性解封,并使用混合酸酐法进行偶联,可以从蛋白聚糖的碳水化合物-蛋白质连接区高产率构建部分或完全糖基化的寡肽。
  • The synthesis of a carbohydrate-like dihydrooxazine and tetrahydrooxazine as putative inhibitors of glycoside hydrolases: A direct synthesis of isofagomine
    作者:Wayne M Best、James M Macdonald、Brian W Skelton、Robert V Stick、D Matthew G Tilbrook、Allan H White
    DOI:10.1139/v02-060
    日期:2002.8.1

    The treatment of benzyl 2,3-O-isopropylidene-β-L-xylopyranoside with N-hydroxyphthalimide under Mitsunobu conditions, followed by protecting-group interchange, gave benzyl 4-O-[(tert-butoxycarbonyl)amino]-2,3- O-isopropylidene-α-D-arabinoside. Mild acid hydrolysis and catalytic hydrogenolysis afforded 4-O-[(tert-butoxycarbonyl)amino]-D-arabinose that, upon heating in water, gave the dihydrooxazine [(4R,5S,6R)-5,6-dihydro-4,5-dihydroxy-6-hydroxymethyl-4H-1,2-oxazine] as a crystalline solid. A single-crystal structure determination of this solid showed it to exist in the 5H6 conformation. Reduction of the dihydrooxazine gave the tetrahydrooxazine [(4R,5S,6R)-4,5-dihydroxy-6-hydroxymethyl-3,4,5,6-tetrahydro-2H-1,2-oxazine]. The dihydrooxazine was an effective inhibitor of two β-glucosidases (Ki = 27 and 35 µM). Benzyl 2,3-O-isopropylidene-β-L-xylopyranoside, via the derived imidazylate, was converted into a nitrile that, upon reduction and protecting-group manipulations, gave benzyl 4-C-aminomethyl-4-deoxy-α-D-arabinoside. Treatment of this amine with hydrogen and palladium-on-carbon gave isofagomine.Key words: dihydrooxazine, tetrahydrooxazine, isofagomine, iminosugars, glycosidase inhibitors.

    甲基2,3-O-异丙基甲醚-β-L-木糖苷在Mitsunobu条件下与N-羟基邻二甲酰亚胺反应,随后进行保护基交换,得到甲基4-O-[(叔丁羰基)基]-2,3-O-异丙基甲醚-α-D-阿拉伯糖苷。经轻酸解和催化解后,得到4-O-[(叔丁羰基)基]-D-阿拉伯糖,加热后,得到二噁嗪[(4R,5S,6R)-5,6-二-4,5-二羟基-6-羟甲基-4H-1,2-噁嗪],为结晶固体。该固体的单晶结构测定显示其存在于5H6构象。对二噁嗪进行还原得到四噁嗪[(4R,5S,6R)-4,5-二羟基-6-羟甲基-3,4,5,6-四-2H-1,2-噁嗪]。二噁嗪是两种β-葡萄糖苷酶的有效抑制剂(Ki=27和35 µM)。甲基2,3-O-异丙基甲醚-β-L-木糖苷通过衍生的咪唑转化为一个腈,经还原和保护基操作后,得到甲基4-C-甲基-4--α-D-阿拉伯糖苷。处理这种胺与-后得到异法戈胺。关键词:二噁嗪,四噁嗪,异法戈胺,亚胺糖,糖苷酶抑制剂
  • Rules for priming and inhibition of glycosaminoglycan biosynthesis; probing the β4GalT7 active site
    作者:Anna Siegbahn、Sophie Manner、Andrea Persson、Emil Tykesson、Karin Holmqvist、Agata Ochocinska、Jerk Rönnols、Anders Sundin、Katrin Mani、Gunilla Westergren-Thorsson、Göran Widmalm、Ulf Ellervik
    DOI:10.1039/c4sc01244e
    日期:——

    Xylose is the optimal substrate for β4GalT7, an essential enzyme in GAG biosynthesis, but analogs act as effective inhibitors.

    Xylose是GAG生物合成中必需的酶β4GalT7的最佳底物,但类似物作为有效的抑制剂
  • Synthesis of sulfated and phosphorylated glycopeptides from the carbohydrate-protein linkage region of proteoglycans
    作者:Sandrine Rio、Jean-Marie Beau、Jean-Claude Jacquinet
    DOI:10.1016/s0008-6215(00)90973-x
    日期:1994.3
    The synthesis of the tetrasaccharide dipeptide beta-D-GlcpA-(1-->3)-beta-D-Galp4SO3Na-(1-->3)-beta-D-Galp-( 1-->4)-beta-D-Xylp- (1-->O)-L-Ser-Gly was achieved by coupling a suitably protected tetrasaccharide trichloroacetimidate, built up from the nonreducing end by the stepwise addition of monosaccharide units, to the protected dipeptide Z-L-Ser-Gly-OBn. Sulfation at O-4 of the second D-Gal unit and
    四糖二肽β-D-GlcpA-(1→3)-β-D-Galp4SO3Na-(1→3)-β-D-Galp-(1→4)-β-的合成D-Xylp-(1-> O)-L-Ser-Gly是通过将适当保护的四糖三亚胺偶联到受保护的二肽ZL-Ser-Gly上而得的-OBn。第二个D-Gal单元在O-4处硫酸化并完全保护,从而以高收率获得了目标分子。其磷酸化的类似物beta-D-GlcpA-(1-> 3)-beta-D-Galp-(1-> 3)-beta-D-Galp-(1-> 4)-beta-D-Xylp2PO3Na2通过将保护的三糖三酰亚胺与Z-(D-Xyl-)L-Ser-Gly-OBn的2,3-O-异亚丙基衍生物偶联,合成-(1-> O)-L-Ser-Gly。O-异亚丙基的解,O-Xyl单元在O-3处的区域选择性乙酰化,并在O-2处磷酸化,然后完全保护,以高收率得到磷酸化的四糖二肽。
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