Methyl 2,3-O-isopropylidene-5-amino-5-deoxy-D-ribofuranoside | 114612-12-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Methyl 2,3-O-isopropylidene-5-amino-5-deoxy-D-ribofuranoside
• 英文别名: Methyl-(5-amino-5-desoxy-2,3-O-isopropyliden-D-ribofuranosid)；1-((3Ar,4r,6ar)-2,2-dimethyl-6-methoxytetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-methanamine；[(3aR,6R,6aR)-4-methoxy-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]methanamine
• CAS: 114612-12-3
• 化学式: C₉H₁₇NO₄
• 分子量: 203.238
• InChiKey: ZWMCMPXCBQFGKS-XDTPYFJJSA-N

物化性质

• 沸点：
  276.0±40.0 °C(predicted)
• 密度：
  1.18±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.7
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  62.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Methyl 2,3-O-isopropylidene-5-amino-5-deoxy-D-ribofuranoside 在 硫酸 、 三乙胺 作用下， 以 1,4-二氧六环 、 二氯甲烷 为溶剂， 反应 5.0h， 生成 2-methyl-N-[[(2R,3S,4R)-3,4,5-trihydroxytetrahydrofuran-2-yl]methyl]propenamide
  参考文献：
  名称：

  [EN] NOVEL LIGANDS FOR ASIALOGLYCOPROTEIN RECEPTOR
  [FR] NOUVEAUX LIGANDS POUR LE RÉCEPTEUR D'ASIALOGLYCOPROTÉINE

  摘要：

  公开号：

  WO2022084331A3
• 作为产物：
  描述：

  卡培他滨杂质25 在 palladium dihydroxide sodium azide 、 高氯酸 、 氢气 、 sodium methylate 、 三乙胺 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 30.0h， 生成 Methyl 2,3-O-isopropylidene-5-amino-5-deoxy-D-ribofuranoside
  参考文献：
  名称：

  Carbohydrate Protease Conjugates: Stabilized Proteases for Peptide Synthesis

  摘要：

  The synthesis of oligopeptides using stable carbohydrate protease conjugates (CPCs) was examined in acetonitrile solvent systems. CPC[alpha-chymotrypsin] was used for the preparation of peptides containing histidine, phenylalanine, tyrosine, and tryptophan in the P-1 position in 60-93% yield. The CPC[alpha-chymotrypsin]-catalyzed synthesis of octamer Z-Gly-Gly-Phe-Gly-Gly-Phe-Gly-Gly-OEt from Z-Gly-Gly-Phe-Gly-Gly-Phe-OMe was achieved in 71% yield demonstrating that synthesis was the dominant kinetic process relative to amide hydrolysis. CPC[papain] was used to synthesize peptides containing both hydrophilic and hydrophobic amino acids. The Pt specificity of papain for aromatic residues was utilized for the 2 + 3 coupling of Z-Tyr-Gly-OMe to H2N-Gly-Phe-Leu-OH to generate the leucine enkephalin derivative in 79% yield. Although papain is nonspecific for the hydrolysis of N-benzyloxycarbonyl amino acid methyl esters in aqueous solution, the rates of synthesis for these derivitives with nucleophile leucine tert-butyl ester differed by nearly 2 orders of magnitude. CPC[thermolysin] was used to prepare the aspartame precursor Z-Asp-Phe-OMe in 90% yield. The increased stability of CPCs prepared from periodate-modified poly(2-methacrylamido-2-deoxy-D-glucose), poly(2-methacrylamido-2-deoxy-D-galactcose) and poly(5-methacrylamido-5-deoxy-D-ribose), carbohydrate materials designed to increase the aldehyde concentration in aqueous solution, suggests that the stability of CPCs is directly related to the aldehyde concentration of the carbohydrate material. Periodate oxidation of poly(2-methacrylamido-2-deoxy-D-glucose) followed by covalent attachment to a-chymotrypsin gave a CPC with catalytic activity in potassium phosphate buffer at 90 degrees C for 2 h.

  DOI：

  10.1021/jo00112a049

文献信息

• CD73 INHIBITORS
  申请人：ORIC Pharmaceuticals, Inc.

  公开号：US20220259253A1

  公开（公告）日：2022-08-18

  Described herein are CD73 inhibitors and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for the treatment of cancer, infections, and neurodegenerative diseases.
• Carbohydrate Protease Conjugates: Stabilized Proteases for Peptide Synthesis
  作者：Charles A. Wartchow、Peng Wang、Mark D. Bednarski、Matthew R. Callstrom

  DOI：10.1021/jo00112a049

  日期：1995.4

  The synthesis of oligopeptides using stable carbohydrate protease conjugates (CPCs) was examined in acetonitrile solvent systems. CPC[alpha-chymotrypsin] was used for the preparation of peptides containing histidine, phenylalanine, tyrosine, and tryptophan in the P-1 position in 60-93% yield. The CPC[alpha-chymotrypsin]-catalyzed synthesis of octamer Z-Gly-Gly-Phe-Gly-Gly-Phe-Gly-Gly-OEt from Z-Gly-Gly-Phe-Gly-Gly-Phe-OMe was achieved in 71% yield demonstrating that synthesis was the dominant kinetic process relative to amide hydrolysis. CPC[papain] was used to synthesize peptides containing both hydrophilic and hydrophobic amino acids. The Pt specificity of papain for aromatic residues was utilized for the 2 + 3 coupling of Z-Tyr-Gly-OMe to H2N-Gly-Phe-Leu-OH to generate the leucine enkephalin derivative in 79% yield. Although papain is nonspecific for the hydrolysis of N-benzyloxycarbonyl amino acid methyl esters in aqueous solution, the rates of synthesis for these derivitives with nucleophile leucine tert-butyl ester differed by nearly 2 orders of magnitude. CPC[thermolysin] was used to prepare the aspartame precursor Z-Asp-Phe-OMe in 90% yield. The increased stability of CPCs prepared from periodate-modified poly(2-methacrylamido-2-deoxy-D-glucose), poly(2-methacrylamido-2-deoxy-D-galactcose) and poly(5-methacrylamido-5-deoxy-D-ribose), carbohydrate materials designed to increase the aldehyde concentration in aqueous solution, suggests that the stability of CPCs is directly related to the aldehyde concentration of the carbohydrate material. Periodate oxidation of poly(2-methacrylamido-2-deoxy-D-glucose) followed by covalent attachment to a-chymotrypsin gave a CPC with catalytic activity in potassium phosphate buffer at 90 degrees C for 2 h.
• [EN] NOVEL LIGANDS FOR ASIALOGLYCOPROTEIN RECEPTOR<br/>[FR] NOUVEAUX LIGANDS POUR LE RÉCEPTEUR D'ASIALOGLYCOPROTÉINE
  申请人：SANOFI SA

  公开号：WO2022084331A3

  公开（公告）日：2022-06-02