- Process for synthesizing 7 -iodopyrrolo [2,F] [1,m-triazine -4 - amine
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The invention belongs to the technical field of chemical synthesis of medicines, and relates to a synthesis process of 7-iodo pyrrolo [2, 1-F] [1, 2, 4] triazine-4-amine. According to the invention, 2, 5-dimethoxy tetrahydrofuran and acethydrazide are used as initial raw materials, and are subjected to substitution, cyanation, deacetylation, cyclization and iodination reactions to obtain 7-iodopyrrolo [2, 1-F] [1, 2, 4] triazine-4-amine. The preparation method is simple, the initial raw materials are 2, 5-dimethoxytetrahydrofuran and acethydrazide which are cheap and easy to obtain. Meanwhile,the yields of the first four steps all reach 85% or above, the productivity is also greatly improved, the total yield of the product is 50% or above, and the purity can reach 99% or above. And meanwhile, the intermediate product is good in quality, so that the dosage of formamidine acetate is reduced when the intermediate IV is prepared. Through experimental comparison, the route has obvious advantages compared with the traditional process route.
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Paragraph 0032-0035
(2021/11/21)
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- Preparation method 7-bromopyrrolo [2,1-f][1, 2, 4]-thiazine -4- amine (by machine translation)
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[, ] The preparation method 7 - of [2,1 - f][1, 2, 4]-(, amino - ((((((((aopipelineao :1) aminopyrrolo 2,5 - thiopyrrole I,) obtained by reacting the intermediate 1 - Boc - 1 - with the formamidine in the following step ;2) can obtain the intermediate I (II, amino-(EC 1 - Boc - 1 -) to obtain the intermediate ;3), namely, II amino-(III, aminopyrrolopyrrole - 2 2-methanonitrile hydrochloride 1 -) to form the intermediate ;4) through the reaction of the intermediates III and the bromination reagent to obtain a final product IV, of the present invention. in an acidic condition and reacting the intermediate body with the bromination reagent. to obtain a final product (4 -aminopyrrolopyridine - 4 4) intermediate, [2,1 - f][1, 2, 4] [2,1 - f][1, 2, 4] obtained by the reaction of the intermediate body with the. bromination reagent and ;5) amino- pyrrolidine. IV-amine,aminopyrroyl hydrochloride 7 . (by machine translation)
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Paragraph 0038-0043
(2020/03/12)
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- SUBSTITUTED 4-AMINO-PYRROLOTRIAZINE DERIVATIVES USEFUL FOR TREATING HYPER-PROLIFERATIVE DISORDERS AND DISEASES ASSOCIATED WITH ANGIOGENESIS
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This invention relates to novel pyrrozolotriazine compounds, pharmaceutical compositions containing such compounds and and the use of those compounds or compositions for treating hyper-proliferative and/or angiogenesis disorders, as a sole agent or in combination with other active ingredients.
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Page/Page column 162-163
(2010/11/27)
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