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METHOD OF SYNTHESIS OF 3-(1-THIAZOLIDINYLBUTYL-4-PIPERAZINYL)-1H-INDAZOLES
METHOD OF SYNTHESIS OF 3-(1-THIAZOLIDINYLBUTYL-4-PIPERAZINYL)-1H-INDAZOLES
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机译:3-(1-噻唑基丁基--4-哌嗪基)-1H-吲哚的合成方法
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FIELD: organic chemistry. SUBSTANCE: product: 3-(1-thiazolidinylbutyl-4-piperazinyl)-1H-indazoles of the general formula (I) where R1 and R2 independently each of other hydrogen, lower alkyl or R1 and R2 together with carbon to which they are bound form cyclopentane or cyclohexane ring; R3 and R4 independently each of other hydrogen or lower alkyl; R5 hydrogen or lower alkyl; X hydrogen or halogen, or their pharmaceutically acid-additive salts. Reagent 1: derivative of 4-thiazolodinone of the formula (II) where R1, R2, R3 and R4 as indicated above. Reagent 2: 3-(1-piperazinyl)-1H-indazole of the formula (III) where X as indicated above. Reaction conditions: in the medium of organic solvent, at heating in atmosphere of inert gas. In the case of synthesis of compounds where R5 lower alkyl compound of the formula (I) where R3 hydrogen is alkylated. Synthesized compounds were used in medicine. EFFECT: improved method of synthesis. 1 tbl
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