2,2,5,7,8-五甲基色满 | 55646-01-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 中文名称: 2,2,5,7,8-五甲基色满
• 英文名称: 2,2,5,7,8-pentamethylchroman
• 英文别名: 2,2,5,7,8-pentamethyl-chromane；2,2,5,7,8-pentamethyl-3,4-dihydrochromene
• CAS: 55646-01-0
• 化学式: C₁₄H₂₀O
• mdl: MFCD00192381
• 分子量: 204.312
• InChiKey: XFZYPCNLVHSQTG-UHFFFAOYSA-N

物化性质

• 熔点：
  36-41 °C(lit.)
• 闪点：
  >230 °F
• 稳定性/保质期：
  遵照规定使用和储存，则不会分解。

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.571
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 储存条件：
  将贮藏器密封后，放入一个紧密封装的容器中，并存放在阴凉、干燥处。

反应信息

• 作为反应物：
  描述：

  2,2,5,7,8-五甲基色满 在 四氯化碳 、 溴乙烷 、 乙醚 、 溴 、 magnesium 作用下， 生成 3,4-二氢-2,2,5,7,8-五甲基-2H-1-苯并吡喃-6-酚
  参考文献：
  名称：

  Smith et al., Journal of Organic Chemistry, 1939, vol. 4, p. 340

  摘要：

  DOI：
• 作为产物：
  描述：

  2-methyl-4-<(2',3',5'-trimethylphenyl)oxy>-2-butene 在 硫酸 作用下， 以 正戊烷 为溶剂， 反应 0.17h， 生成 2,2,5,7,8-五甲基色满
  参考文献：
  名称：

  Synthesis of new aromatic retinoid analogs by low-valent titanium-induced reductive elimination

  摘要：

  DOI：

  10.1021/jo00272a032

文献信息

• Compositions Comprising Enzyme-Cleavable Oxycodone Prodrug
  申请人：Jenkins Thomas E.

  公开号：US20120178772A1

  公开（公告）日：2012-07-12

  The embodiments provide Compound KC-8, N-1-[3-(oxycodone-6-enol-carbonyl-methyl-amino)-2,2-dimethyl-propylamine]-arginine-glycine-malonic acid, or acceptable salts, solvates, and hydrates thereof. The present disclosure also provides compositions, and their methods of use, where the compositions comprise a prodrug, Compound KC-8, that provides controlled release of oxycodone. Such compositions can optionally provide a trypsin inhibitor that interacts with the enzyme that mediates the controlled release of oxycodone from the prodrug so as to attenuate enzymatic cleavage of the prodrug.

  本发明提供了化合物KC-8，即N-1-[3-(氧可酮-6-烯醇-羰基-甲基-氨基)-2,2-二甲基-丙胺]-精氨酸-甘氨酸-苹果酸，或其可接受的盐、溶剂合物和水合物。本发明还提供了包含前药KC-8的组合物及其使用方法，其中该组合物包含一个前药KC-8，它能控制释放氧可酮。这样的组合物可以选择性地提供一个胰蛋白酶抑制剂，该抑制剂与介导前药控制释放氧可酮的酶相互作用，以减弱前药的酶切裂。
• Inhibition of tumor growth
  申请人：Eliassen Liv Tone

  公开号：US09109048B2

  公开（公告）日：2015-08-18

  The present invention provides a cytotoxic 7 to 25 mer peptide with three or more cationic residues which has one or more non-genetic bulky and lipophilic amino acids, as well as esters, amides, salts and cyclic derivatives thereof as well as methods of preparing the peptides, pharmaceutical compositions containing them and their use as medicaments, particularly as antibacterions or antitumoral agents. In a preferred aspect, the invention provides the use of said peptides in a method of inducing adaptive immunity against tumor growth or establishment in a subject, as well as the use of other lytic agents in a method of inducing adaptive immunity in a subject.

  本发明提供了一种具有三个或更多阳离子残基的细胞毒性7至25个氨基酸肽，其中含有一个或多个非遗传性的臃肿和亲脂氨基酸，以及它们的酯、酰胺、盐和环衍生物的制备方法，含有它们的药物组合物以及它们作为药物的用途，特别是作为抗菌或抗肿瘤剂。在一个首选方面，本发明提供了利用所述肽在诱导受试者对肿瘤生长或建立产生适应性免疫的方法，以及利用其他溶解剂在诱导受试者产生适应性免疫的方法。
• 2,2,4,6,7-Pentamethyl-2,3-dihydrobenzofuran-5-methyl (Pbfm) as an Alternative to the Trityl Group for the Side-Chain Protection of Cysteine and Asparagine/Glutamine
  作者：Oscar Garcia、Josep M. Bofill、Ernesto Nicolas、Fernando Albericio

  DOI：10.1002/ejoc.201000201

  日期：2010.7

  The benzyl derivative of the Pbf group, which is the most commonly used side-chain protecting group for Arg, has been proposed for the protection of the side chains of Cys, Asp, and Glu. In the three cases, the new protecting group (Pbfm) was removed with a high concentration of TFA during the cleavage and global deprotection step. In addition, the Pbfm group can be removed from the Cys residue by

  Pbf 基团的苄基衍生物是 Arg 最常用的侧链保护基团，已被提议用于保护 Cys、Asp 和 Glu 的侧链。在这三种情况下，新的保护基团 (Pbfm) 在裂解和全局脱保护步骤中被高浓度的 TFA 去除。此外，可以使用非常稀的 TFA 溶液从 Cys 残留物中去除 Pbfm 基团。此外，当 Cys 被 Pbfm 基团保护时，它可以通过氧化处理去除，从而直接在固相上形成二硫键。
• Tocopherols, tocotrienols, other chroman and side chain derivatives and uses thereof
  申请人：——

  公开号：US20020107207A1

  公开（公告）日：2002-08-08

  The present invention provides an antiproliferative compound having a structural formula 1 where X and Y independently are oxygen, nitrogen or sulfur; R 1 is alkyl, alkenyl, alkynyl, aryl, heteroaryl, carboxylic acid, carboxylate, carboxamide, ester, thioamide, thiolacid, thiolester, saccharide, alkoxy-linked saccharide, amine, sulfonate, sulfate, phosphate, alcohol, ethers or nitrites; R 2 and R 3 are hydrogen or R 4 ; R 4 is methyl, benzyl carboxylic acid, benzyl carboxylate, benzyl carboxamide, benzylester, saccharide or amine; and R 5 is alkenyl; where when Y is nitrogen, said nitrogen is substituted with R 6 , wherein R 6 is hydrogen or methyl. Also provided are methods for treating a cell proliferative disease and for inducing apoptosis in a cell comprising administering this compound is also provided.

  本发明提供了一种具有结构式1的抗增殖化合物，其中X和Y独立地是氧、氮或硫；R1是烷基、烯基、炔基、芳基、杂环芳基、羧酸、羧酸盐、羧酰胺、酯、硫代酰胺、硫酸、硫酸酯、糖苷、烷氧基连接的糖苷、胺、磺酸盐、硫酸盐、磷酸盐、醇、醚或亚硝酸盐；R2和R3是氢或R4；R4是甲基、苄基羧酸、苄基羧酸盐、苄基羧酰胺、苄基酯、糖苷或胺；R5是烯基；其中当Y为氮时，所述氮被R6取代，其中R6是氢或甲基。还提供了治疗细胞增殖性疾病和诱导细胞凋亡的方法，包括给予该化合物。
• [EN] PROCESSES FOR PREPARATION OF (S)-TERT-BUTYL 4,5-DIAMINO-5-OXOPENTANOATE<br/>[FR] PROCÉDÉS DE PRÉPARATION DE (S)-TERT-BUTYL 4,5-DIAMINO-5-OXOPENTANOATE
  申请人：CELGENE CORP

  公开号：WO2019040109A1

  公开（公告）日：2019-02-28

  Provided are processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate, or a salt, solvate, hydrate, enantiomer, mixture of enantiomers, or isotopologue thereof. Also provided are solid forms of various intermediates and products obtained from the processes.

  提供了制备(S)-叔丁基4,5-二氨基-5-氧代戊酸酯，或其盐、溶剂结晶体、水合物、对映体、对映体混合物或同位素类似物的方法。还提供了从这些过程中获得的各种中间体和产物的固体形式。

表征谱图