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。
Synthesis, Antileishmanial Activity and Spin Labeling EPR Studies of Novel β-Carboline-Oxazoline and β-Carboline-Dihydrooxazine Derivatives
作者:Paula Baréa、Jéssica de Paula、Laís Alonso、Aline de Oliveira、Willian da Costa、Antonio Alonso、Celso Nakamura、Maria Sarragiotto
DOI:10.21577/0103-5053.20200003
日期:——
A series of novel 1-(substituted-phenyl)-3-(4,5-dihydro-1,3-oxazol-2-yl)-9H-beta-carboline (8a-8i) and 1-(substituted-phenyl)-3-(5,6-dihydro-4H-1,3-oxazin-2-yl)-9H-beta-carboline (9a-9h) derivatives. as well as their respective N-(chloroalkyl)-1-(substituted-phenyl)-9H-beta-carboline-3-carboxamide precursors (6a-6i and 7a-7h), were synthesized and evaluated for their in vitro antileishmanial activity against promastigote and intracellular amastigote forms of Leishmania amazonensis. Compounds 8d. 8i, 9e and 9h exhibited significant activity for both promastigote and amastigote forms, with IC50 (50% inhibitory concentration) values ranging from 2.9 to 23.0 mu M. In addition, spin label electron paramagnetic resonance (EPR) spectroscopy studies were carried out for the most active compounds against L amazonensis promastigotes. The studies indicated that the tested compounds cause strong stiffness in the parasite plasma membrane and are capable of inducing internal metalloproteins oxidation of the parasite, resulting in their cross-linking to skeletal proteins. Compounds 8d and 8i produced the largest effect, showing that the presence of oxazoline group at C-3 of beta-carboline nucleus is important for antileishmanial activity.
[EN] SMALL MOLECULE INHIBITORS OF THE CRL4 UBIQUITIN LIGASE<br/>[FR] INHIBITEURS À PETITES MOLÉCULES DE L'UBIQUITINE LIGASE CRL4
申请人:[en]CORNELL UNIVERSITY
公开号:WO2023173136A2
公开(公告)日:2023-09-14
Compounds of formula (I), compounds of formula (II), and compounds of formula (III) are disclosed. Also disclosed are compounds, compositions, and methods to inhibit CUL4A expression or activity, CUL4B expression or activity, and/or DDB1 expression or activity for the treatment or prevention of cancer, DNA damage, or related conditions. In some aspects, the interaction between CUL4A and/or CUL4B and the beta-propeller B of DDB1 is disrupted with the compounds, compositions, or methods.