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30 results about "Benzo Quinolizine" patented technology

Novel prodrugs von 6-hydroxy-2,3-dihydro-1h-indoles, 5-hydroxy-1,2-dihydro-3h-pyrrolo[3,2-e]indoles and 5-hydroxy-1,2-dihydro-3h-benzo(e)indoles as well as of 6-hydroxy-1,2,3,4-tetrahydro-benzo[f]quinoline derivatives for use in selective cancer therapy

The chemotherapy of malignant tumours is greatly restricted by the generally slight differentiation of the available cytostatic agents between normal and malignant tissue. In order to achieve an improvement of the selectivity in cancer therapy, novel prodrugs have been developed from 6-hydroxy-2,3-dihydro-1H-indolene, 5-hydroxy-1,2-dihydro-3H-pyrrolo[3,2-e]indolene and 5-hydroxy-1,2-dihydro-3H-benzo[e]indolene as well as from 6-hydroxy-1,2,3,4-tetrahydro-benzo[f]-quinolines, that may be used within the framework of the ADEP therapy (antibody directed enzyme prodrug therapy). The new prodrugs are characterised by a high difference in toxicity between the prodrug and underlying drug and by a very high efficacy of the drug. The high selectivity of the new prodrugs is probably attributed to the fact that, in the new prodrugs, a secondary halide is present in contrast to the prodrugs of a similar type previously produced by us. The direct alkylation of the DNA or RNA by the prodrugs and thus the toxicity of the prodrugs is thereby reduced. After splitting off of the glycosidic and / or acetal group on the phenolic hydroxy groups of the prodrugs, a spirocyclopropacyclohexadiene is formed which, being a highly toxic group, effects an alkylation of the DNA or RNA.
Owner:TIETZE LUTZ F

Nitrogen-containing ligand iridium complex as well as preparation method and application thereof

The invention provides a nitrogen-containing ligand iridium complex as well as a preparation method and application thereof, and belongs to the technical field of synthesis and application of inorganic materials. According to the iridium complex, firstly, a benzoquinoline iridium dimeric intermediate is synthesized from iridium trichloride and benzoquinoline, 4, 4'-dimethyl-2, 2'-bipyridyl is oxidized into bipyridine formaldehyde by using selenium dioxide at the same time, then hydroxylamine hydrochloride is added to reduce the bipyridine formaldehyde into bipyridine formaldehyde oxime, bipyridine formaldehyde oxime is used as a third ligand and reacts with the benzoquinoline iridium dimer to obtain a nitrogen-containing ligand iridium complex with a novel structure, and the nitrogen-containing ligand iridium complex can be used as a fluorescent probe for rapid identification and even trace detection of hypochlorite ions. The complex is simple in synthesis process, mild in reaction condition, small in reagent dosage, low in manufacturing cost, small in environmental pollution and good in optical property and biocompatibility. A hypochlorite ion fluorescent probe constructed by using the complex is high in sensitivity, good in selectivity, good in anti-interference performance, wide in concentration detection range and low in detection limit.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
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