2,5-二氯-3-噻吩甲酸是一种重要的中间体,在药物制备中广泛应用。
制备方法中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 2,5-dichlorothiophene-3-carboxylate | 130562-95-7 | C7H6Cl2O2S | 225.095 |
2-氯-3-噻吩甲酸 | 2-chlorothiophene-3-carboxylic acid | 53935-71-0 | C5H3ClO2S | 162.597 |
5-氯-3-噻吩甲酸 | 5-chlorothiophene-3-carboxylic acid | 36157-42-3 | C5H3ClO2S | 162.597 |
2,5-二氯噻吩-3-醛 | 2,5-dichlorothiophene-4-carboxaldehyde | 61200-60-0 | C5H2Cl2OS | 181.042 |
2,5-二氯-3-乙酰基噻吩 | 3-acetyl-2,5-dichlorothiophene | 36157-40-1 | C6H4Cl2OS | 195.069 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | ethyl 2,5-dichlorothiophene-3-carboxylate | 130562-95-7 | C7H6Cl2O2S | 225.095 |
—— | (2,5-dichloro-3-thienyl)methanol | 219765-84-1 | C5H4Cl2OS | 183.058 |
2,5-二氯硫代苯-3-碳酰氯 | 2,5-dichlorothiophene-3-carbonyl chloride | 57248-14-3 | C5HCl3OS | 215.487 |
A new series of substituted ethyl 7-cyclopropyl-2-(2-aryloxo)-3-nitro-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylates 3a–e were prepared by utilizing ethyl 2-chloro-7-cyclopropyl-3-nitro-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylate (1) and replacing of the 2-chlorine with anions obtained from phenol (2a), salicylaldehyde derivatives 2b–d or thiophenol (2e), leading to the respective ethyl 7-cyclopropyl-2-(2-aryloxo)-3-nitro-4-oxo-4,7-dihydrothieno[2,3-b]pyridine-5-carboxylates 3a–e. The new compounds were evaluated for their in vitro cytotoxicity towards sensitive CCRF-CEM and multidrug-resistant CEM/ADR5000 leukemia cells. The screening revealed that compounds 3a, 3b, and 3e inhibited the growth of both cell lines. Compound 3b, with a phenol moiety, exhibited the highest growth inhibitory activity against CEM/ADR5000 and CCRF-CEM cells with IC50 values 4.486 ± 0.286 and 2.580 ± 0.550 μM, respectively. Collectively, the presented results demonstrate that the synthesized thieno[2,3-b]pyridines warrant further exploration for potential use as anti-cancer agents.