中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 1,5-dimethyl-1H-indole-2-carboxylate | 167478-82-2 | C12H13NO2 | 203.241 |
5-甲基吲哚-2-甲酸 | 5-methylindole-2-carboxylic acid | 10241-97-1 | C10H9NO2 | 175.187 |
5-甲基-1H-吲哚-2-羧酸甲酯 | methyl 5-methyl-1H-indole-2-carboxylate | 102870-03-1 | C11H11NO2 | 189.214 |
HO-1 overexpression has been reported in several cases/types of human malignancies. Unfortunately, poor clinical outcomes are reported in most of these cases, and the inhibition of HO-1 is considered a valuable and proven anticancer approach. To identify novel hit compounds suitable as HO-1 inhibitors, we report here a fragment-based approach where ligand joining experiments were used. The two most important parts of the classical structure of the HO-1 inhibitors were used as a starting point, and 1000 novel compounds were generated and then virtually evaluated by structure and ligand-based approaches. The joining experiments led us to a novel series of indole-based compounds. A synthetic pathway for eight selected molecules was designed, and the compounds were synthesized. The biological activity revealed that some molecules reach the micromolar activity, whereas molecule 4d inhibits the HO-1 with an IC50 of 1.03 μM. This study suggested that our joining approach was successful, and a novel hit compound was generated. These results are ongoing for further development.