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三环类抗抑郁药对大鼠脑匀浆中5-羟色胺能神经元突触体摄取5-羟色胺的抑制作用的构效关系。

Structure-activity relations for the inhibition of 5-hydroxytryptamine uptake by tricyclic antidepressants into synaptosomes from serotoninergic neurones in rat brain homogenates.

作者信息

Horn A S, Trace R C

出版信息

Br J Pharmacol. 1974 Jul;51(3):399-403. doi: 10.1111/j.1476-5381.1974.tb10675.x.

Abstract

1 The inhibitory effects of various analogues of imipramine on [(3)H]-5-hydroxytryptamine (5-HT) uptake into homogenates of rat hypothalamus were examined.2 For structures with a three carbon side chain the tertiary amine derivative was more potent than the compound with a secondary amine function.3 Potency was reduced by increasing or decreasing the length of the three carbon side chain by one carbon atom.4 Substitution of a methyl group in the alpha or beta position in the side chain reduced potency.5 Replacement of the dimethylene bridge in imipramine by a sulphur atom or substitution of a C=C double bond for the exocyclic N-C bond of imipramine both led to a fall in potency.6 3-Chlorimipramine was the most potent inhibitor of [(3)H]-5-hydroxytryptamine uptake of the compounds tested.

摘要
  1. 研究了丙咪嗪各种类似物对[(3)H]-5-羟色胺(5-HT)摄取到大鼠下丘脑匀浆中的抑制作用。

  2. 对于具有三个碳侧链的结构,叔胺衍生物比具有仲胺官能团的化合物更有效。

  3. 通过将三个碳侧链的长度增加或减少一个碳原子,效力降低。

  4. 在侧链的α或β位取代甲基会降低效力。

  5. 用硫原子取代丙咪嗪中的二亚甲基桥或用碳碳双键取代丙咪嗪的环外氮碳键均导致效力下降。

  6. 在测试的化合物中,3-氯丙咪嗪是[(3)H]-5-羟色胺摄取的最有效抑制剂。

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本文引用的文献

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Biogenic amines and emotion.生物胺与情绪。
Science. 1967 Apr 7;156(3771):21-37. doi: 10.1126/science.156.3771.21.
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5-hydroxytryptamine uptake by rat brain in vitro.大鼠脑体外摄取5-羟色胺
Life Sci. 1967 Aug 1;6(15):1653-63. doi: 10.1016/0024-3205(67)90176-2.

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