中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-甲氧基吲哚-3-乙腈 | 5-methoxyindole-3-acetonitrile | 2436-17-1 | C11H10N2O | 186.213 |
—— | 3-amino-2-(5-methoxy-3-indolyl)propionic acid | 73139-82-9 | C12H14N2O3 | 234.255 |
—— | 1-(5-methoxy-1H-indol-3-yl)cyclobutanecarbonitrile | 896101-84-1 | C14H14N2O | 226.278 |
A series of tryptamine analogues has been prepared and tested for their 5-HT1 receptor agonist properties.
The incorporation of an alkoxy group at the C-5 position of the indole nucleus resulted in a short-lived and dose-dependent immediate antihypertensive and bradycardic response in anaesthetized spontaneously hypertensive rats (SHR). In addition, a carbomethoxy function at the β-position of the side-chain of the tryptamines significantly increased the mean resting arterial blood pressure (MAP) in pithed rats and also produced contraction of the canine basilar artery in a dose-dependent fashion.
Structure-activity relationships (SAR) suggest that the 5-alkoxy group is an important pharmacophore in the production of the antihypertensive effect and that the introduction of a hydroxymethylene group on the side-chain, instead of the carbomethoxy group, changed the receptor affinity profile.