Dehydrogenation of 1-aryl(hetaryl)-1,2,3,4-tetrahydro-9H-β-carboline-3-carboxylic acids and their esters with dimethyl sulfoxide
作者:M. G. Abramyants、D. A. Lomov、T. I. Zavyazkina
DOI:10.1134/s1070428016110117
日期:2016.11
boline-3-carboxylic acids derivatives with dimethyl sulfoxide leads to the formation of 1-aryl(hetaryl)-9Н-β-carbolines. Simultaneously with the dehydrogenation decarboxylation occurs. At the oxidation with dimethyl sulfoxide of methyl 1-aryl (hetaryl)-1,2,3,4-tetrahydro-9Н-β-carboline-3-carboxylicates methyl 1-aryl(hetaryl)-9Н-β-carboline-3-carboxylates formed whose hydrolysis afforded the corresponding
1-芳基(杂芳基)-1,2,3,4-四氢-9-氧化脱氢Н -β-β-咔啉-3-羧酸的衍生物与二甲亚砜通向1-芳基(杂芳基)-9形成Н - β-咔啉。与脱氢同时发生脱羧。在用甲基1-芳的二甲亚砜(杂芳基)-1,2,3,4-四氢-9-氧化Н -β-β-咔啉-3- carboxylicates甲基-1-芳基(杂芳基)-9- Н -β咔啉形成3-羧酸盐,其水解得到相应的1-芳基(杂芳基)-9Н -β-咔啉-3-羧酸。
β-Carbolines as specific inhibitors of cyclin-Dependent kinases
作者:Yongcheng Song、Jian Wang、Su Fern Teng、Djohan Kesuma、Yu Deng、Jinao Duan、Jerry H. Wang、Robert Zhong Qi、Mui Mui Sim
DOI:10.1016/s0960-894x(02)00094-x
日期:2002.4
Harmine (3), 7-fluoro-1-methyl beta-carboline (35) and 1-(5-methyl-imidazol-4-yl) beta-carboline (41) were potent and specific inhibitors of cyclin-dependent kinases. The degree of aromaticity of the tricyclic ring and the positioning of substituents are important for inhibitory activity. While most beta-carbolines inhibited CDK2 and CDK5 to the same extent. selective inhibition against CDK2 was observed in 1-(2-chlorophenyl)- (12), 1-(2-fluorophenyl)- (15), and 1-(2-chloro-5-nitrophenyl)- (28) beta-carbolines. (C) 2002 Elsevier Science Ltd. All rights reserved.
Organic base-promoted efficient dehydrogenative/decarboxylative aromatization of tetrahydro-β-carbolines into β-carbolines under air
DBN has been identified as an efficient reagent for promoting the dehydrogenative/decarboxylative aromatization of tetrahydro-β-carbolines under air atmosphere, to access the corresponding β-carbolines in moderate to good yields. The utility of this protocol for the gram-scale synthesis of β-carboline alkaloids eudistomin U (7) and harmane (10) has also been demonstrated.