cis-3,6-dihydro-6-methyl-2-(phenylmethoxy)-2H-pyran | 934021-75-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: cis-3,6-dihydro-6-methyl-2-(phenylmethoxy)-2H-pyran
• 英文别名: (2R,6R)-6-methyl-2-phenylmethoxy-3,6-dihydro-2H-pyran
• CAS: 934021-75-7
• 化学式: C₁₃H₁₆O₂
• 分子量: 204.269
• InChiKey: XDPXDZYWRDBHTR-DGCLKSJQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  cis-3,6-dihydro-6-methyl-2-(phenylmethoxy)-2H-pyran 在 四氧化锇 、 N-甲基吗啉氧化物 作用下， 以 水 为溶剂， 反应 3.0h， 以92%的产率得到phenylmethyl 2,6-dideoxy-β-D-ribo-hexopyranoside
  参考文献：
  名称：

  从头开始的2-Deoxy-β-糖苷方法：地高糖和Digitoxin 1的不对称合成

  摘要：

  已经开发出了高度对映选择性和直接的途径来制备三糖天然产物地高糖和洋地黄毒苷。该方法的关键是钯催化糖基化反应，还原性1,3-移位，非对映选择性二羟基化和区域选择性保护的迭代应用。天然产物digoxose的第一全合成是在非手性从2- acylfuran 19个总步骤完成，和洋地黄毒苷在15个步骤塑成从洋地黄毒苷开始2和吡喃酮8 β。这种灵活的合成策略还允许制备地高糖和洋地黄毒苷的单糖和二糖类似物。

  DOI：

  10.1021/jo062534+
• 作为产物：
  描述：

  (2R,6R)-3,6-dihydro-2-methyl-6-(phenylmethoxy)-2H-pyran-3-ol 在 2-硝基苯磺酰肼 N-甲基吗啉 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以84%的产率得到cis-3,6-dihydro-6-methyl-2-(phenylmethoxy)-2H-pyran
  参考文献：
  名称：

  从头开始的2-Deoxy-β-糖苷方法：地高糖和Digitoxin 1的不对称合成

  摘要：

  已经开发出了高度对映选择性和直接的途径来制备三糖天然产物地高糖和洋地黄毒苷。该方法的关键是钯催化糖基化反应，还原性1,3-移位，非对映选择性二羟基化和区域选择性保护的迭代应用。天然产物digoxose的第一全合成是在非手性从2- acylfuran 19个总步骤完成，和洋地黄毒苷在15个步骤塑成从洋地黄毒苷开始2和吡喃酮8 β。这种灵活的合成策略还允许制备地高糖和洋地黄毒苷的单糖和二糖类似物。

  DOI：

  10.1021/jo062534+

文献信息

• Regiochemical control of the ring opening of aziridines by means of chelating processes. 2. Synthesis and ring-opening reactions of aziridines derived from 5,6-dihydro-2H-pyran and of the diastereoisomeric cis- and trans-aziridines derived from 3-(benzyloxy)cyclohexene, 2-(benzyloxy)-3,6-dihydro-, and 2-(benzyloxy)-6-methyl-3,6-dihydro-2H-pyran
  作者：Paolo Crotti、Valeria Di Bussolo、Lucilla Favero、Mauro Pineschi

  DOI：10.1016/s0040-4020(96)01054-x

  日期：1997.1

  The regiochemical outcome of the ring opening of the activated and unactivated title aziridines was examined. In some cases a nice degree of regiocontrol can be obtained depending on the opening reaction conditions (standard, metal-assisted, or under acid-proton catalysis). The results have been rationalized by admitting the incursion, under appropriate reaction conditions, of chelated bidentate structures

  检查了活化的和未活化的标题氮丙啶的开环的区域化学结果。在某些情况下，取决于打开的反应条件（标准，金属辅助或在酸-质子催化下），可以获得很好的区域控制程度。通过允许在适当的反应条件下侵入金属或某些情况下质子在氮丙啶氮与O-杂官能团之间配位的螯合二齿结构，使结果合理化。
• De Novo Synthesis of the Trisaccharide Subunit of Landomycins A and E
  作者：Maoquan Zhou、George A. O’Doherty

  DOI：10.1021/ol800697k

  日期：2008.6.5

  A highly enantio- and diastereoselective synthesis of alpha-L-rhodinose, beta-D-olivose as well as the trisaccharide portion of landomycin A from achiral acetyl furan has been developed. The key transformations include the palladium-catalyzed glycosylation, Myers' reductive rearrangement, diastereoselective dihydroxylation, and regioselective Mitsunobu inversion. A Mitsunobu reaction on a six member ring cis-1,2-diol was found to chemoselectively discriminate between equatorial and axial alcohols and to stereoselectively convert cis-1,2-diol into ant 1,2-diol.
• A Direct Comparison of the Anticancer Activities of Digitoxin MeON-Neoglycosides and <i>O</i>-Glycosides
  作者：Anand Krishnan V. Iyer、Maoquan Zhou、Neelam Azad、Hosam Elbaz、Leo Wang、Derek K. Rogalsky、Yon Rojanasakul、George A. O'Doherty、Joseph M. Langenhan

  DOI：10.1021/ml1000933

  日期：2010.10.14

  Digitoxin is a cardiac glycoside currently being investigated for potential use in oncology; however, an investigation of anticancer activity as a function, of oligosaccharide chain length has not yet been performed. We generated mono-, di-, and tri-O-digitoxoside derivatives, of digitoxin and compared their activities to the corresponding MeON-neoglycosides. Both classes of cardenolide derivatives display comparable oligosaccharide chain length-dependent cytotoxicity toward human cancer cell lines. Further investigation revealed that both classes of compounds induce caspase-9-mediated apoptosis in non-small cell lung cancer cells (NCI-H460). Because O-glycosides and MeON-neoglycosides share a similar mode of action, the convenience of MeON-neoglycosylation could be exploited in future SAR work to rapidly survey large numbers of carbohydrates to prioritize selected O-glycoside candidates for traditional synthesis.
• Crotti, Paolo; Bussolo, Valeria Di; Favero, Lucilla, Gazzetta Chimica Italiana, 1997, vol. 127, # 2, p. 79 - 90
  作者：Crotti, Paolo、Bussolo, Valeria Di、Favero, Lucilla、Jannitti, Nicoletta、Pineschi, Mauro、Pasero, Marco

  DOI：——

  日期：——