(S)-4-amino-2-methyl-1-butanol tetrahydropyranyl ether | 183812-31-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧烷类
• 英文名称: (S)-4-amino-2-methyl-1-butanol tetrahydropyranyl ether
• 英文别名: (3S)-3-methyl-4-(oxan-2-yloxy)butan-1-amine
• CAS: 183812-31-9
• 化学式: C₁₀H₂₁NO₂
• 分子量: 187.282
• InChiKey: ZCZPRAUWWCCPQT-RGURZIINSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  13
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  44.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (S)-4-amino-2-methyl-1-butanol tetrahydropyranyl ether 在 对甲苯磺酸 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 1.0h， 生成 (S)-N-[3,5-bis(trifluoromethyl)benzyl]-7,8-dihydro-7-(4-hydroxy-3-methylbutyl)-5-(4-methylphenyl)-8-oxo-1,7-naphthyridine-6-carboxamide
  参考文献：
  名称：

  Axially Chiral 1,7-Naphthyridine-6-carboxamide Derivatives as Orally Active Tachykinin NK₁ Receptor Antagonists:  Synthesis, Antagonistic Activity, and Effects on Bladder Functions

  摘要：

  Cyclic analogues of N-[3,5-bis(trifluoromethyl)benzyl]-7,8-dihydro-N,7-dimethyl-5-(4-methylphenyl)-8-oxo-1,7-naphthyridine-6-carboxamide (1) having a 6-9-membered ring (6-9) were synthesized and evaluated for NK1 antagonistic activities. The 8-membered ring compound with a beta-methyl group at the C-(9)-position, (aR,9R)-7-[3,5-bis(trifluoromethyl)benzyl]-8,9,10,-11-tetrahydro-9-methyl-5-(4-methylphenyl)-7H-[1,4]diazocino[2,1-g][1,7]naphthyridine-6,13-di-one [(aR,9R)-8b], was atropodiastereoselectively synthesized by cyclization of a chiral intermediate, 10g. On the other hand, the 7-membered ring compound with a beta-methyl group at the C-(9)-position [(9S)-7b] was obtained as an equilibrium mixture of atropisomers with a ratio of ca. 3:2 in solution at room temperature (measured by NMR in CDCl3). Compounds (9S)-7b and (aR,9R)-8b exhibited excellent antagonistic activities both in vitro [IC50 (inhibition of [I-125]BH-SP binding in human IM-9 cells) = 0.28 and 0.45 nM, respectively] and in vivo (iv and po). Significantly, the in vitro activity of (aR,9R)-8b was ca. 750-fold higher than that of its enantiomer (aS,9S)-8b, ca. 40-fold higher than its atropisomer (aS,9R)-8b, and ca. 20-fold higher than its diastereomer (aR,9S)-8b. The structure-activity relationships in this series, along with the X-ray analysis of (aR,9R)-8b, indicated that the stereochemistry around the -C-(6)(=O)-N-(7)-CH2Ar moiety is important for NK1 receptor recognition. The NK1 antagonists showed effects on bladder functions in guinea pigs upon intravenous injection: i.e., the antagonists increased the shutdown time of distension-induced rhythmic bladder contractions and the bladder volume threshold, and the effects on the shutdown time were found to correlate well with the NK1 antagonistic activities. Compound (aR,9R)-8b has been identified as a potential clinical candidate for the treatment of bladder function disorders.

  DOI：

  10.1021/jm990220r
• 作为产物：
  描述：

  (S)-3-氰基-2-甲基-1-丙醇四氢吡喃醚 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 反应 1.0h， 生成 (S)-4-amino-2-methyl-1-butanol tetrahydropyranyl ether
  参考文献：
  名称：

  Axially Chiral 1,7-Naphthyridine-6-carboxamide Derivatives as Orally Active Tachykinin NK₁ Receptor Antagonists:  Synthesis, Antagonistic Activity, and Effects on Bladder Functions

  摘要：

  Cyclic analogues of N-[3,5-bis(trifluoromethyl)benzyl]-7,8-dihydro-N,7-dimethyl-5-(4-methylphenyl)-8-oxo-1,7-naphthyridine-6-carboxamide (1) having a 6-9-membered ring (6-9) were synthesized and evaluated for NK1 antagonistic activities. The 8-membered ring compound with a beta-methyl group at the C-(9)-position, (aR,9R)-7-[3,5-bis(trifluoromethyl)benzyl]-8,9,10,-11-tetrahydro-9-methyl-5-(4-methylphenyl)-7H-[1,4]diazocino[2,1-g][1,7]naphthyridine-6,13-di-one [(aR,9R)-8b], was atropodiastereoselectively synthesized by cyclization of a chiral intermediate, 10g. On the other hand, the 7-membered ring compound with a beta-methyl group at the C-(9)-position [(9S)-7b] was obtained as an equilibrium mixture of atropisomers with a ratio of ca. 3:2 in solution at room temperature (measured by NMR in CDCl3). Compounds (9S)-7b and (aR,9R)-8b exhibited excellent antagonistic activities both in vitro [IC50 (inhibition of [I-125]BH-SP binding in human IM-9 cells) = 0.28 and 0.45 nM, respectively] and in vivo (iv and po). Significantly, the in vitro activity of (aR,9R)-8b was ca. 750-fold higher than that of its enantiomer (aS,9S)-8b, ca. 40-fold higher than its atropisomer (aS,9R)-8b, and ca. 20-fold higher than its diastereomer (aR,9S)-8b. The structure-activity relationships in this series, along with the X-ray analysis of (aR,9R)-8b, indicated that the stereochemistry around the -C-(6)(=O)-N-(7)-CH2Ar moiety is important for NK1 receptor recognition. The NK1 antagonists showed effects on bladder functions in guinea pigs upon intravenous injection: i.e., the antagonists increased the shutdown time of distension-induced rhythmic bladder contractions and the bladder volume threshold, and the effects on the shutdown time were found to correlate well with the NK1 antagonistic activities. Compound (aR,9R)-8b has been identified as a potential clinical candidate for the treatment of bladder function disorders.

  DOI：

  10.1021/jm990220r

文献信息

• Enantioselective synthesis of an axially chiral 1,7-naphthyridine-6-carboxamide derivative having potent antagonist activity at the NK1 receptor
  作者：Yoshinori Ikeura、Takayuki Doi、Akira Fujishima、Hideaki Natsugari

  DOI：10.1039/a805333b

  日期：——

  A new and highly potent NK1 antagonist, (aR,9R)-3 [(aR,9R)-7-[3,5-bis(trifluoromethyl)benzyl]-8,9,10,11-tetrahydro-9-methyl-5-(4-methylphenyl)-7H-[1,4]diazocino[2,1-g][1,7]naphthyridine-6,13-dione], was atropdiastereoselectively synthesized in good yield by cyclization of the chiral intermediate 6b.

  一种新的高效 NK1 拮抗剂 (aR,9R)-3 [(aR,9R)-7-[3,5-双(三氟甲基)苄基]-8,9,10,11-四氢-9-甲基-5-(4-甲基苯基)-7H-[1、6,13-二酮]，通过手性中间体 6b 的环化反应，以良好的收率合成了异丙二astereoselectively。