| abstract |
FIELD: chemistry, pharmacology. n SUBSTANCE: present invention relates to method for production of indolo-pyrrolo-carbazole derivative according to formula (I) , or its pharmaceutically acceptable salt, that have antitumour activity. Invention also relates to method for production of indole compound according to formula (XII) , or its pharmaceutically acceptable salt, where R 1 is protective hydroxy-group, distinguished by conducting interreaction between compound with formula (XIII) , or its pharmaceutically acceptable salt, where R 1 is definitely above, R a and R b are either separately C 1 -C 7 -alkyl, or together form C 3 -C 6 -alkylene group, and hydrogen gas at 1 to 5 atmospheres, in presence of hydrogenation catalyst (applied as novel catalyst as well), which consist of rhodium compound, metal compound, and optionally amine, in inert solvent at room temperature; the rhodium compound being 1 to 10% rhodium on carbon, aluminium oxide, calcium carbonate, or barium sulphate, and metal compound being nickel (II), iron (II), iron (III), cobalt (II), or cobalt (III). Method is also submitted for production of bis-indole compound by formula (VIII) , or its pharmaceutically acceptable salt, where R 1 is protective hydroxy-group, Y is hydrogen, C 1 -C 7 -alkyl, phenyl, benzyloxymethyl, or C 7 -C 12 -aralkyl, consisting in reaction of indole compound by formula (XII), or its pharmaceutically acceptable salt, where R 1 is protective hydroxy-group, with ethylmagnesium chloride, or butylmagnesium chloride, or magnesium compound by formula (X) R d MgR d , where R d is butyl, in inert solvent, followed by conducting interreaction between product obtained and maleimide compound by formula (IX) , where X is halogen, and Y as above, in inert solvent. n EFFECT: improved method for indolo-pyrrolo-carbazole production. n 15 cl, 68 ex, 12 tbl |