中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (E)-1-(4-fluorophenyl)-3-(1-(4-fluorophenyl)-9H-pyrido[3,4-b]indol-3-yl)prop-2-en-1-one | —— | C26H16F2N2O | 410.423 |
—— | 1-(4-fluorophenyl)-3-(6-methyl-1H-benzo[d]imidazol-2-yl)-9H-pyrido[3,4-b]indole | 1585210-77-0 | C25H17FN4 | 392.435 |
—— | 3-(6-chloro-1H-benzo[d]imidazol-2-yl)-1-(4-fluorophenyl)-9H-pyrido[3,4-b]indole | 1585210-75-8 | C24H14ClFN4 | 412.853 |
—— | 3-(5,6-dichloro-1H-benzo[d]imidazol-2-yl)-1-(4-fluorophenyl)-9H-pyrido[3,4-b]indole | 1585210-78-1 | C24H13Cl2FN4 | 447.298 |
A series of β-carboline–benzimidazole conjugates were synthesized using lanthanum nitrate as a novel catalyst and evaluated for their anticancer activity.
A robust transition-metal-free strategy is presented to access novel β-carboline-tethered benzothiophenone derivatives from 1(3)-formyl-β-carbolines using elemental sulfur activated by Et3N/DMSO. This expeditious catalyst-free reaction proceeds through the formation of β-carboline-based 2-nitrochalcones followed by an incorporation of sulfur to generate multifunctional β-carboline-linked benzothiophenones in good to excellent yields. The synthetic strategy could also be extended towards the synthesis of β-carboline-linked benzothiophenes. Moreover, the afforded products emerged as promising fluorophores and displayed excellent light-emitting properties with quantum yields (ΦF) up to 47%.