Horn A S, Trace R C
Br J Pharmacol. 1974 Jul;51(3):399-403. doi: 10.1111/j.1476-5381.1974.tb10675.x.
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.
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。
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。
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。
在侧链的α或β位取代甲基会降低效力。
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。
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。