METHOD FOR SYNTHESIS OF BENZO[7,8]AZONINO[5,4-b]INDOLE, 7,9-ETHENO-AZECINO [5,4-b]INDOLE AND 7,9-ETHANO-AZECINO[5,4-b]INDOLE DERIVATIVES Russian patent published in 2010 - IPC C07D487/04 C07D487/14 

FIELD: chemistry.

SUBSTANCE: invention relates to a method for synthesis of novel derivatives of benzo[7,8]azonino[5,4-b]indoles, 7,9-etheno-azecino[5,4-b]indoles and 7,9-ethano-azecino[5,4-b]indoles with general structural formulae: , , , I, IV, VII X=H,Y=CO₂Me; II, V, VIII X=H, Y=COMe; III, VI, IX X=Y=CO₂Me, which have proved to be cytostatic and cytotoxic compounds. The method involves dissolving 3,8,13,13b-tetrahydro-5H-benzo[1,2]indolysino[8,7-b]indole, ethyl eburnamenine-14-carboxylate or methyl (3-α, 14-β, 16α)-14-hydroxy-14,15-dihydro eburnamenine -14-carboxylate in methanol and then reaction with excess dimethyl acetylenedicarboxylate (ADCX) or methyl propiolate or acetyl acetylene, while stirring at +40-+50°C, with subsequent removal of the solvent and grinding the residue in hexane or a mixture of hexane with ethylacetate (ether) or purified using column chromatography on aluminium oxide.

EFFECT: design of an efficient method of obtaining hazardous compounds.

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