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methyl 2,4,6-tri-O-benzyl-α-D-galactopyranoside | 55697-50-2

中文名称
——
中文别名
——
英文名称
methyl 2,4,6-tri-O-benzyl-α-D-galactopyranoside
英文别名
(2S,3R,4S,5R,6R)-2-methoxy-3,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-4-ol
methyl 2,4,6-tri-O-benzyl-α-D-galactopyranoside化学式
CAS
55697-50-2
化学式
C28H32O6
mdl
——
分子量
464.558
InChiKey
UFTIKUYXMPCFQZ-JYIVOWJTSA-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

物化性质

  • 沸点:
    608.7±55.0 °C(Predicted)
  • 密度:
    1.20±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.5
  • 重原子数:
    34
  • 可旋转键数:
    11
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.36
  • 拓扑面积:
    66.4
  • 氢给体数:
    1
  • 氢受体数:
    6

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:
    描述:
    methyl 2,4,6-tri-O-benzyl-α-D-galactopyranoside4-二甲氨基吡啶copper(I) bromide dimethylsulfide complex三乙胺 作用下, 以 四氢呋喃二氯甲烷 为溶剂, 反应 121.0h, 生成 [(2S,3R,4S,5S,6R)-2-methoxy-3,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-4-yl] (3R)-3-methylpent-4-enoate
    参考文献:
    名称:
    将有机铜酸酯高度非对映选择性地与甲基α-D-葡萄糖-,α-D-甘露糖苷或α-D-吡喃半乳糖苷连接在一起,从而束缚α,β-不饱和酯。新型不对称获得β-C取代的丁酸。
    摘要:
    由乙烯基溴化镁和溴化亚铜制备的1,4-二乙烯基铜镁酸加到甲基α-D-吡喃葡萄糖苷的一些4-O-巴豆酰基衍生物中,可以高水平地进行非对映化学诱导,从而提供了良好至优异收率的加合物。其他有机铜酸盐也可作为有效的碳亲核试剂用于1,4-加成。从每个加合物中除去碳水化合物部分,得到了各种对映体过量的β-C-取代的丁酸酯。还研究了相同的铜酸盐在一些甲基α-D-甘露聚糖或α-D-吡喃半乳糖苷底物中的1,4-加成,每个底物中并入了巴豆酰基,各自在3-OH上。当某些D-甘露聚糖类型的底物经受1,4-添加条件类似于用于D-葡萄糖型底物的条件。此外,一些D-半乳糖型底物提供具有更高非对映选择性的1,4-加合物。
    DOI:
    10.1021/jo0101860
  • 作为产物:
    描述:
    (2S,3R,4S,5S,6R)-2-methoxy-4-(naphthalen-2-ylmethoxy)-3,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxane 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下, 以 二氯甲烷 为溶剂, 反应 2.0h, 以80%的产率得到methyl 2,4,6-tri-O-benzyl-α-D-galactopyranoside
    参考文献:
    名称:
    Use of 1,2-dichloro 4,5-dicyanoquinone (DDQ) for cleavage of the 2-naphthylmethyl (NAP) group
    摘要:
    The 2-naphthylmethyl (NAP) group is a versatile group for protection of hydroxyl functions. It is stable to 4% TFA in CHCl3, hot 80% HOAc-H2O, SnCl2-AgOTf and HCl-EtOH, but it can readily be removed with DDQ in CH2Cl2. (C) 1999 Elsevier Science Ltd. All rights reserved.
    DOI:
    10.1016/s0040-4039(99)02046-8
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文献信息

  • Development of highly stereoselective GalN3 donors and their application in the chemical synthesis of precursors of Tn antigen
    作者:George Ngoje、Janet Addae、Harpreet Kaur、Zhitao Li
    DOI:10.1039/c1ob05893b
    日期:——
    A graphical abstract is available for this content
    本文内容配有图解摘要。
  • 1,3,4,6-Tetra-O-acetyl-2-chloroacetamido-2-deoxy-β-d-glucopyranose as a glycosyl donor in syntheses of oligosaccharides
    作者:Falguni Dasgupta、Laurens Anderson
    DOI:10.1016/0008-6215(90)84083-7
    日期:1990.7
    beta-linked disaccharides were obtained from the galactoside and glucoside acceptors, but with allyl 2-acetamido-3,6-di-O-benzyl-2-deoxy-alpha-D-glucopyranoside, stereoselectivity was lost (alpha:beta-ratio 1:2). Allyl and benzyl 2-acetamido-3,6-di-O-benzyl-2-deoxy-beta-D-glucopyranosides gave, respectively, the allyl and benzyl beta-glycosides of the donor as major products. A mechanism is proposed for this
    测试了1,3,4,6-四-O-乙酰基-2-氯乙酰氨基-2-脱氧-β-D-吡喃葡糖作为经由氯化铁催化的偶联反应寡糖合成的糖基供体。尝试的糖基受体(总共6个)是分别在3和4位具有游离OH基的O-苄基保护的D-半乳糖苷,以及类似取代的D-葡萄糖和2-乙酰氨基-2-脱氧-D-葡萄糖的未取代糖苷在O-4上 在4种情况下,通过利用Garegg和Hultberg的氰基硼氢化物方法将4,6-O-亚苄基---- 6-O-苄基[Carbohydr。Res.93(1981)c10-c11; 108(1982)97-101]。从半乳糖苷和葡萄糖苷受体获得了良好或优异的β联结二糖收率,但是使用了2-acetamido-3烯丙基,6-二-O-苄基-2-脱氧-α-D-吡喃葡萄糖苷,失去了立体选择性(α:β-比率1:2)。烯丙基和苄基2-乙酰氨基-3,6-二-O-苄基-2-脱氧-β-D-吡喃葡萄糖苷分别提供给体的烯丙基和
  • Diastereoselective sp<sup>3</sup> C–O Bond Formation via Visible Light-Induced, Copper-Catalyzed Cross-Couplings of Glycosyl Bromides with Aliphatic Alcohols
    作者:Fei Yu、Jalen L. Dickson、Ravi S. Loka、Hengfu Xu、Richard N. Schaugaard、H. Bernhard Schlegel、Long Luo、Hien M. Nguyen
    DOI:10.1021/acscatal.0c01470
    日期:2020.6.5
    electrophiles to control α-1,2-cis selectivity. In our approach, earth-abundant copper not only acts as a photocatalyst and a bond-forming catalyst, but also enforces the stereocontrolled formation of anomeric C–O bonds. This cross-coupling protocol enables highly diastereoselective access to a wide variety of α-1,2-cis-glycosides and biologically relevant α-glycan oligosaccharides. Our work provides a foundation
    铜催化的交叉偶联反应已成为产生碳-杂原子键(许多有机分子的重要框架)的最有效方法之一。但是,由于铜的氧化加成反应迟钝,铜催化的卤代烷与烷基醇的C(sp 3)–O交叉偶联仍然难以实现。为解决这一挑战,我们开发了一种催化铜系统,该系统可借助可见光克服铜的氧化加成障碍,并有效地促进糖基溴化物与脂肪族醇的交叉偶联,从而提供具有C(sp 3)-O键的高非对映选择性。重要的是,该催化体系导致温和而有效的立体选择性构建α-1,2-顺式的方法苷,这是最重要的,但具有挑战性。通常,α-1,2-顺式糖苷C–O键形成过程中的立体化学结果是无法预测的,并且取决于与碳水化合物偶联伙伴结合的保护基的空间和电子性质。当前,最可靠的方法依赖于在碳水化合物亲电体的C2和C4位置使用手性辅助或氢键引导基团来控制α-1,2-顺式选择性。在我们的方法中,富含地球的铜不仅充当光催化剂和形成键的催化剂,而且还增强了异头C-O键的立体
  • [EN] NOVEL GALACTOSIDE INHIBITOR OF GALECTINS<br/>[FR] NOUVEL INHIBITEUR DE GALECTINES DU TYPE GALACTOSIDE
    申请人:GALECTO BIOTECH AB
    公开号:WO2021001538A1
    公开(公告)日:2021-01-07
    The present invention relates to a D-galactopyranose compound of formula (1) wherein the pyranose ring is α-D-galactopyranose, and these compounds are high affinity galectin-3 inhibitors for use in treatment of inflammation; Inflammation induced thrombosis; Atopic dermatitis; Acute coronary syndrome; fibrosis, such as pulmonary fibrosis, liver fibrosis, kidney fibrosis, ophthalmological fibrosis and fibrosis of the skin and heart; local fibrosis such as Dupuytren's disease and Peyronie's disease; fibrotic complications of other therapies such as coronary stents, bile duct stents, cerebral artery stents, ureter stents; scleroderma; scarring; keloid formation; covid-19; acute lung injury; ARDS; viral pneumonitis, aberrant scar formation; surgical adhesions; septic shock; cancer, such as colorectal cancer, other gastrointestinal carcinomas such as pancreatic cancer, gastric cancer, biliary tract cancer, lung cancers, mesothelioma, female cancers like breast cancer, ovarian cancer, uterine cancer, cancer of the cervix uteri, cancer of the salpingx, cerebral cancers such as medulloblastomao, glioma, meningioma, sarcomas of the bones and muscles and other sarcomas, leukemias and lymphomas, such as T-cell lymphomas; transplant rejection; metastasising cancers; ageing; Dementia; Alzheimers; TGFbeta driven bone disease such as osteogenesis imperfecta; Pulmonary hypertension; autoimmune diseases, such as psoriasis, rheumatoid arthritis, Rheumatoid lung; Crohn's disease, ulcerative colitis, ankylosing spondylitis, systemic lupus erythematosus; viral infections such as influenza virus, HIV, Herpes virus, Coronaviruses, Hepatitis C; metabolic disorders; heart disease; heart failure; pathological angiogenesis, such as ocular angiogenesis or a disease or condition associated with ocular angiogenesis, e.g. neovascularization related to cancer; and eye diseases, such as age-related macular degeneration and corneal neovascularization; atherosclerosis; metabolic diseases; diabetes; type I diabetes; type 2 diabetes; insulin resistens; obesity; Marfans syndrome; Loeys–Dietz syndrome; nephropathy; Diastolic HF; fibrotic lung complications of aPD1 and other CPI therapies; asthma and other interstitial lung diseases, including Hermansky-Pudlak syndrome, liver disorders, such as non- alcoholic steatohepatitis or non-alcoholic fatty liver disease; uterine disease such as uterine fibroids and uterine or cervical fibrosis.
    本发明涉及一种化学式(1)中的D-半乳糖吡喃糖类化合物,其中吡喃糖环为α-D-半乳糖吡喃糖,这些化合物是高亲和力的galectin-3抑制剂,用于治疗炎症;炎症诱导性血栓形成;特应性皮炎;急性冠状动脉综合征;纤维化,如肺纤维化、肝脏纤维化、肾脏纤维化、眼科纤维化和皮肤和心脏的纤维化;局部纤维化,如杜普伊特伦氏病和佩罗尼氏病;其他治疗的纤维化并发症,如冠状支架、胆管支架、脑动脉支架、输尿管支架;硬皮病;瘢痕形成;瘢痕增生;新冠肺炎;急性肺损伤;ARDS;病毒性肺炎;异常瘢痕形成;手术粘连;脓毒性休克;癌症,如结直肠癌、其他胃肠道癌症如胰腺癌、胃癌、胆道癌、肺癌、间皮瘤、女性癌症如乳腺癌、卵巢癌、子宫癌、宫颈癌、输卵管癌、脑癌如髓母细胞瘤、胶质瘤、脑膜瘤、骨骼和肌肉的肉瘤和其他肉瘤、白血病和淋巴瘤,如T细胞淋巴瘤;移植排斥;转移性癌症;衰老;痴呆症;阿尔茨海默病;TGFbeta驱动的骨疾病,如骨发育不全;肺动脉高压;自身免疫疾病,如牛皮癣、类风湿关节炎、类风湿肺;克罗恩病、溃疡性结肠炎、强直性脊柱炎、系统性红斑狼疮;病毒感染,如流感病毒、HIV、疱疹病毒、冠状病毒、丙型肝炎;代谢紊乱;心脏病;心力衰竭;病理性血管生成,如眼部血管生成或与眼部血管生成相关的疾病或症状,例如与癌症相关的新血管生成;眼部疾病,如老年性黄斑变性和角膜新血管生成;动脉粥样硬化;代谢性疾病;糖尿病;1型糖尿病;2型糖尿病;胰岛素抵抗;肥胖;马凡氏综合征;洛伊斯-迪茨综合征;肾病;舒张期心力衰竭;PD1和其他CPI疗法的肺纤维化并发症;哮喘和其他间质性肺疾病,包括赫尔曼斯基-普德拉克综合征、肝脏疾病,如非酒精性脂肪性肝炎或非酒精性脂肪肝病;子宫疾病,如子宫肌瘤和子宫或宫颈纤维化。
  • 1‐Picolinyl‐5‐azido Thiosialosides: Versatile Donors for the Stereoselective Construction of Sialyl Linkages
    作者:Jian Chen、Thomas Hansen、Qing‐Ju Zhang、De‐Yong Liu、Yao Sun、Hao Yan、Jeroen D. C. Codée、Richard R. Schmidt、Jian‐Song Sun
    DOI:10.1002/anie.201909177
    日期:2019.11.18
    flexibility in sialoside derivative synthesis, high temperature tolerance and easy scalability. In particular, the applicability to the synthesis of complex and bioactive N-glycan antennae when combined with the MPEP glycosylation protocol via the "latent-active" strategy has been shown. Mechanistically, the excellent α-stereoselectivity of the novel sialylation protocol could be attributed to the dramatic
    以picolinyl(Pic)基团为C-1定位的导向基团,N3为C5-NH2的通用前体,设计并合成了一种新型的1-Pic-5-N3硫代唾液酸供体,在此基础上建立了新的唾液酸化方案。与传统的唾液酸化方法相比,新方案显示出明显的优势,包括在无溶剂效应的情况下具有出色的α-立体选择性,广泛的底物范围(包括具有挑战性的唾液酸受体的唾液基8和9-羟基),唾液酸衍生物的柔韧性合成,耐高温和易于扩展。特别地,已经显示出当通过“潜在活性”策略与MPEP糖基化方案结合时,对于合成复杂且具有生物活性的N-聚糖触角的合成的适用性。机械上,
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