Synthesis of 7-Azaserotonin: Its Photophysical Properties Associated with Excited State Proton Transfer Reaction
摘要:
We report the synthesis of 3-(2-aminoethyl)-5-ol-1H-pyrrolo[2,3-b]pyridine (7-azaserotonin), which may potentially serve as an agonist or antagonist of serotonin receptors. In alcohols, the solvent (e.g., ethanol) catalyzed proton-transfer reaction takes place for 7-azaserotonin in the excited state, resulting in dual emission. Conversely, excited-state deprotonation takes place in neutral aqueous solution. The unique excitation behavior makes 7-azaserotonin versatile as a potential bioprobe.
Practical Synthesis of 7-Azaserotonin and 7-Azamelatonin
作者:Takahide Nishi、Ren Fukuya、Koji Yamada
DOI:10.1055/s-0041-1738758
日期:2022.12
A practical method for synthesizing 7-azaserotonin and 7-azamelatonin was developed by using 3-bromo-5-methoxy-1-tosyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridin-2-ol as a starting material. This compound is a useful reactant for the formal C3-electrophilic reaction. The lactone derivative obtained by the reaction with Meldrum’s acid was used as a key intermediate, in which the C2 unit was introduced into
以 3-bromo-5-methoxy-1-tosyl-2,3-dihydro-1 H - pyrrolo[2,3 - b ]pyridin-2-ol为原料,开发了一种合成 7-azaserotonin 和 7-azamelatonin 的实用方法作为起始材料。该化合物是正式的 C3-亲电反应的有用反应物。以与Meldrum's酸反应得到的内酯衍生物为关键中间体,在7-氮杂吲哚骨架中引入了C 2单元。