(4aR,6R,8aS)-6-cyclopropyl-8a-(2,4-difluorophenyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-amine

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (4aR,6R,8aS)-6-cyclopropyl-8a-(2,4-difluorophenyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-amine
• 英文别名: (4aS,6S,8aR)-6-cyclopropyl-8a-(2,4-difluorophenyl)-4a,5,6,8-tetrahydro-4H-pyrano[3,4-d][1,3]thiazin-2-amine
• 化学式: C₁₆H₁₈F₂N₂OS
• 分子量: 324.395
• InChiKey: RHJJDGACVHKXNA-FUEDEBDSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  22
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  72.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (4aR,6R,8aS)-6-cyclopropyl-8a-(2,4-difluorophenyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-amine 在 二氧化碳 、 异丙胺 作用下， 以 甲醇 为溶剂， 以147 mg的产率得到(4aR,6R,8aS)-6-cyclopropyl-8a-(2,4-difluorophenyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-amine
  参考文献：
  名称：

  Discovery of a Series of Efficient, Centrally Efficacious BACE1 Inhibitors through Structure-Based Drug Design

  摘要：

  The identification of centrally efficacious beta-secretase (BACE1) inhibitors for the treatment of Alzheimer's disease (AD) has historically been thwarted by an inability to maintain alignment of potency, brain availability, and desired absorption, distribution, metabolism, and excretion (ADME) properties. In this paper, we describe a series of truncated, fused thioamidines that are efficiently selective in garnering BACE1 activity without simultaneously inhibiting the closely related cathepsin D or negatively impacting brain penetration and ADME alignment, as exemplified by 36. Upon oral administration, these inhibitors exhibit robust brain availability and are efficacious in lowering central Amyloid beta (A beta) levels in mouse and dog. In addition, chronic treatment in aged PS1/APP mice effects a decrease in the number and size of A beta-derived plaques. Most importantly, evaluation of 36 in a 2-week exploratory toxicology study revealed no accumulation of autofluorescent material in retinal pigment epithelium or histology findings in the eye, issues observed with earlier BACE1 inhibitors.

  DOI：

  10.1021/jm501833t
• 作为产物：
  描述：

  1-环丙基-丁-3-烯-1-醇 在 吡啶 、 盐酸 、 sodium hypochlorite 、 三氟甲磺酸酐 、 三氟化硼乙醚 、 sodium acetate 、 sodium hydride 、 溶剂黄146 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 三乙胺 、 锌 作用下， 以 四氢呋喃 、 甲醇 、 乙醇 、 二氯甲烷 、 水 、 甲苯 、 mineral oil 为溶剂， 反应 103.0h， 生成 (4aR,6R,8aS)-6-cyclopropyl-8a-(2,4-difluorophenyl)-4,4a,5,6,8,8a-hexahydropyrano[3,4-d][1,3]thiazin-2-amine
  参考文献：
  名称：

  Discovery of a Series of Efficient, Centrally Efficacious BACE1 Inhibitors through Structure-Based Drug Design

  摘要：

  The identification of centrally efficacious beta-secretase (BACE1) inhibitors for the treatment of Alzheimer's disease (AD) has historically been thwarted by an inability to maintain alignment of potency, brain availability, and desired absorption, distribution, metabolism, and excretion (ADME) properties. In this paper, we describe a series of truncated, fused thioamidines that are efficiently selective in garnering BACE1 activity without simultaneously inhibiting the closely related cathepsin D or negatively impacting brain penetration and ADME alignment, as exemplified by 36. Upon oral administration, these inhibitors exhibit robust brain availability and are efficacious in lowering central Amyloid beta (A beta) levels in mouse and dog. In addition, chronic treatment in aged PS1/APP mice effects a decrease in the number and size of A beta-derived plaques. Most importantly, evaluation of 36 in a 2-week exploratory toxicology study revealed no accumulation of autofluorescent material in retinal pigment epithelium or histology findings in the eye, issues observed with earlier BACE1 inhibitors.

  DOI：

  10.1021/jm501833t

文献信息

• [EN] CARBOCYCLIC- AND HETEROCYCLIC-SUBSTITUTED HEXAHYDROPYRANO[3,4-d][1,3]THIAZIN-2-AMINE COMPOUNDS<br/>[FR] COMPOSÉS HEXAHYDROPYRANO[3,4-D][1,3]THIAZIN-2-AMINE SUBSTITUÉS CARBOCYCLIQUES ET HÉTÉROCYCLIQUES
  申请人：PFIZER

  公开号：WO2014097038A1

  公开（公告）日：2014-06-26

  The present invention provides compounds of formula (I), wherein the variables R1, R2, R5 and b are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.

  本发明提供了式（I）的化合物，其中变量R1、R2、R5和b如规范中定义。相应的药物组合物、治疗方法、合成方法和中间体也被揭示。
• Carbocyclic- And Heterocyclic-Substituted Hexahydropyrano[3,4-d][1,3]Thiazin-2-Amine Compounds
  申请人：PFIZER INC.

  公开号：US20160002264A1

  公开（公告）日：2016-01-07

  The present invention provides compounds of formula I, wherein the variables R 1 , R 2 , R 5 and b are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.

  本发明提供了I式化合物，其中变量R1、R2、R5和b的定义如规范中所述。本发明还揭示了相应的药物组合物、治疗方法、合成方法和中间体。
• US9403846B2
  申请人：——

  公开号：US9403846B2

  公开（公告）日：2016-08-02