Synthesis of 1-(4-hydroxy-3-methoxyphenyl)-2,3,4,9-tetrahydro-1H-β-carboline-3-carboxylic acid derivatives as mast cell stabilizers
作者:Karan Saini、Jatinder Singh、Ramanpreet Shah、Jaspreet Kaur、Dhandeep Singh、Nirmal Singh、Amteshwar Singh Jaggi、Dimple Sethi Chopra、Ram Sarup Singh
DOI:10.1007/s00044-020-02555-y
日期:2020.8
9-diisopropyl-2,3,4,9-tetrahydro-1H-β-carboline-3-carboxylic acid; IC50 = 0.389 ± 0.015 µM) and tri-substituted octyl (compound 17; cis-1-(3’-Methoxy-4’-(octyloxy)phenyl)-2,9-dioctyl-2,3,4,9-tetrahydro-1H-β-carboline-3-carboxylic acid; IC50 = 0.237 ± 0.031 µM) were found to be equipotent. Furthermore, the polar group SO2 containing compound tosyl derivative (compound 21; cis-1-(4’-hydroxy-3’-methoxyphenyl)-2-tosyl-2
肥大细胞的作用可以是保护性的或有害的;取决于它们被激活的生理/病理状况。后者的作用是由于肥大细胞脱粒和一系列燃烧介质的释放。肥大细胞在诸如变态反应,湿疹,过敏性休克,肥大细胞增多症以及其他各种肥大细胞疾病中具有公认的作用。以前,我们已经证明螺-β-咔啉烷基化类似物具有肥大细胞稳定活性。最近,色氨酸被报道抑制肥大细胞的活化。实际上,据报道香兰素类似物抑制脱粒。因此,值得合成21个色氨酸与香草醛的受限类似物,它们是2,3,4,9-四氢-β-咔啉-3-羧酸的衍生物,并对其进行离体评估抑制化合物48/80诱导的肥大脱粒活性。通过将IC 50(µM)值与标准药物克罗莫林钠(IC 50 = 0.486±0.003 µM)进行比较,可得到大体积的基团化合物,如三取代异丙基(化合物7;顺式-1-(4-异丙氧基-3-甲氧基苯基)- 2,9-二异丙基-2,3,4,9-四氢-1 H -β-咔啉-3-羧酸; IC