115118-93-9Relevant articles and documents
A medicine intermediate 4 - nitro indole preparation process (by machine translation)
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Paragraph 0026; 0027; 0029; 0032; 0033; 0037, (2019/06/13)
The present invention discloses a pharmaceutical intermediate 4 - nitro indole preparation process, which belongs to the field of pharmaceutical intermediates. The invention relates to 2 - methyl - 3 - nitroaniline with the original carboxylic acid triethyl ester as raw material, in the sulfonic acid type cation exchange resin and common under the catalysis of the sodium tartrate, for 95 - 105 °C lower, reaction generating N - (2 - methyl - 3 - nitrophenyl) b [...] imine, N - (2 - methyl - 3 - nitrophenyl) b oxygen radical armor imine with strong alkali and diethyl oxalate phosphite to produce 4 - nitro indole. The invention two-step process of 4 - nitro indole, intermediate does not need purification, simplifies the process, and avoiding the loss of the product; at the same time the process of the invention, simple post-treatment, the product has high purity, the purification process of product loss, high yield. (by machine translation)
A 4-nitro-indole synthesis method (by machine translation)
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Paragraph 0039; 0040; 0041; 0042; 0043; 0044; 0045; 0046, (2016/11/17)
The invention discloses a 4-nitro-indole synthesis method, which belongs to the field of chemical synthesis, in order to 2-methyl-3-nitroaniline with the original a acid tri-ethyl ester in 100 °C under catalysis and benzoic acid, the reaction 1.5-2h generating N-(2-methyl-3-nitrophenyl) b oxygen radical armor imine, N-(2-methyl-3-nitrophenyl) b oxygen radical armor imine with sodium ethoxide and oxalic acid bis ethyl ester in 40 °C reaction 1.5h, to produce 4-nitro indole crude product, 4-nitro indole crude product after recrystallizing and sublimation reaction to obtain the 4-nitro-indole. The method of the invention in the prior art to the process parameters on the basis of optimizing one by one, the overall yield of the reaction, reduce the reaction time, improve the synthesis economic benefits. (by machine translation)
Synthesis and in vitro and in vivo antitumor activity of 2-phenylpyrroloquinolin-4-ones
Ferlin, Maria Grazia,Chiarelotto, Gianfranco,Gasparotto, Venusia,Dalla Via, Lisa,Pezzi, Vincenzo,Barzon, Luisa,Palu, Giorgio,Castagliuolo, Ignazio
, p. 3417 - 3427 (2007/10/03)
In our search for potential new anticancer drugs, we designed and synthesized a series of tricyclic compounds containing the antimitotic 2-phenylazaflavone chromophore fused to a pyrrole ring in a pyrroloquinoline structure. Compounds 8, 18, 19, 22, 23, 25 and 26, when tested against a panel of fourteen human tumor cell lines, showed poor in vitro cytotoxic activity, whereas 20, 21 and 24 showed significant activity (IC50 0.7 to 50 μM). Steroid hormone-sensitive ovary, liver, breast and adrenal gland adenocarcinoma cell lines displayed the highest sensitivity (IC50 0.7 to 8 μM). Compound 24 blocked cells in the G2/M phase of the cell cycle and induced a significant increase in apoptotis. Compounds 20, 21 and 24 proved to alter microtubule assembly and stability, displaying a cytoplasmic microtubule network similar to that caused by Vincristine. In vivo, administration of compound 24 to Balb/c mice inhibited the growth of a syngenic hepatocellular carcinoma.