2,6,7-Trioxabicyclo(2.2.2)octane, 4-methyl-1-(1-methylethyl)- | 60028-18-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,6,7-Trioxabicyclo(2.2.2)octane, 4-methyl-1-(1-methylethyl)-
• 英文别名: 4-methyl-1-propan-2-yl-2,6,7-trioxabicyclo[2.2.2]octane
• CAS: 60028-18-4
• 化学式: C₉H₁₆O₃
• 分子量: 172.22
• InChiKey: URTKLIFWVCNGEI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

文献信息

• Compositions Comprising a Polymeric Reagent and a Pharmacologically Active Agent
  申请人：NEKTAR THERAPEUTICS

  公开号：US20150328331A1

  公开（公告）日：2015-11-19

  Pharmaceutical compositions of conjugates are provided. The conjugates can be prepared by (among other ways) conjugating a pharmacologically active agent with a polymeric reagent that has a particular arrangement of atoms. Related methods, preparations, and so forth are also provided.

  提供了共轭物的制药组合物。这些共轭物可以通过将具有特定原子排列的聚合物试剂与药理活性试剂共轭而制备。还提供了相关的方法、制备等。
• DIARYLETHENE COMPOUNDS AND USES THEREOF
  申请人：SWITCH MATERIALS, INC.

  公开号：US20160083398A1

  公开（公告）日：2016-03-24

  A compound according to Formula IA and IB, reversibly convertible under photochromic and electrochromic conditions between a ring-open isomer A and a ring-closed isomer B is provided. For substitutent groups, Z is N, O or S; each R 1 is independently selected from the group consisting of H, or halo; each R 2 is independently selected from the group consisting of H, halo, a polymer backbone, alkyl or aryl; or, when both R 2 together form —CH═CH— and form part of a polymer backbone; each R 3 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl; each R 4 is aryl; and each R 5 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl.

  本发明提供了一种按照式IA和IB的化合物，在光致变色和电致变色条件下，可在环开放异构体A和环闭合异构体B之间可逆地转化。对于取代基，Z为N、O或S；每个R1独立地选自H或卤素；每个R2独立地选自H、卤素、聚合物骨架、烷基或芳基；或者，当两个R2一起形成-CH═CH-并形成聚合物骨架的一部分时；每个R3独立地选自H、卤素、烷基、烷氧基、硫代烷基或芳基；每个R4为芳基；每个R5独立地选自H、卤素、烷基、烷氧基、硫代烷基或芳基。
• Eight-arm polyethylene glycol derivative, production method therefor, and modified bio-related substance thereof
  申请人：XIAMEN SINOPEG BIOTECH CO., LTD.

  公开号：US10434182B2

  公开（公告）日：2019-10-08

  Disclosed are an eight-arm polyethylene glycol (PEG) derivative (formula I), production method therefor and modified bio-related substance thereby. Wherein, one tetravalent group U together with four trivalent groups Ec form a highly symmetrical octavalent group CORE0; Lc connects the octavalent group to eight PEG chains having polydispersity or monodispersity and having n1 to n8 as the degree of polymerization thereof; the terminal of one PEG chain is connected to at least one functional group F (k≥1); said PEG chain and F therebetween can be directly connected (g=0) or be indirectly connected via a linking group L0 to a terminal end-branching group G (g=1); the latter provides more reactive sites for binding more drug molecules and increases the drug loading. The eight-arm polyethylene glycol derivative has a centrosymmetric or approximately centrosymmetric structure, and leads to more precise control of the molecular weight in large-scale production and much narrower distribution of molecular weight for products. The modified bio-related substance thereby has a more uniform and controllable performance.

  本发明公开了一种八臂聚乙二醇（PEG）衍生物（式 I）、其生产方法及其改性生物相关物质。其中，一个四价基团 U 与四个三价基团 Ec 形成一个高度对称的八价基团 CORE0；Lc 将八价基团连接到八条具有多分散性或单分散性且聚合度为 n1 至 n8 的 PEG 链上；一条 PEG 链的末端与至少一个官能团 F 连接（k≥1）；所述 PEG 链和 F 之间可以直接连接（g=0），也可以通过连接基团 L0 与末端支化基团 G 间接连接（g=1）；后者提供了更多的反应位点，可以结合更多的药物分子，增加药物负载量。八臂聚乙二醇衍生物具有中心对称或近似中心对称结构，因此在大规模生产中可以更精确地控制分子量，产品的分子量分布也更窄。因此，改性生物相关物质的性能更均匀、更可控。
• Diarylethene compounds and uses thereof
  申请人：SWITCH MATERIALS, INC.

  公开号：US10556912B2

  公开（公告）日：2020-02-11

  A compound according to Formula IA and IB, reversibly convertible under photochromic and electrochromic conditions between a ring-open isomer A and a ring-closed isomer B is provided. For substitutent groups, Z is N, O or S; each R1 is independently selected from the group consisting of H, or halo; each R2 is independently selected from the group consisting of H, halo, a polymer backbone, alkyl or aryl; or, when both R2 together form —CH═CH— and form part of a polymer backbone; each R3 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl; each R4 is aryl; and each R5 is independently selected from the group consisting of H, halo, alkyl, alkoxy, thioalkyl or aryl.

  提供了一种根据式 IA 和 IB 的化合物，该化合物在光致变色和电致变色条件下可在开环异构体 A 和闭环异构体 B 之间进行可逆转换。对于取代基，Z 是 N、O 或 S；每个 R1 独立地选自 H 或卤代；每个 R2 独立地选自 H、卤代、聚合物骨架、烷基或芳基；或者，当两个 R2 一起形成 -CH═CH- 并构成聚合物骨架的一部分时；每个 R3 独立地选自由 H、卤素、烷基、烷氧基、硫代烷基或芳基组成的组；每个 R4 是芳基；每个 R5 独立地选自由 H、卤素、烷基、烷氧基、硫代烷基或芳基组成的组。
• Polymer derivatives having particular atom arrangements
  申请人：Nektar Therapeutics

  公开号：US10646578B2

  公开（公告）日：2020-05-12

  Polymeric reagents are provided comprising a moiety of atoms arranged in a specific order, wherein the moiety is positioned between a water-soluble polymer and a reactive group. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.

  聚合物试剂由按特定顺序排列的原子分子组成，其中原子分子位于水溶性聚合物和活性基团之间。这些聚合物试剂主要用于形成聚合物-活性剂共轭物。还提供了相关的方法、组合物、制剂等。