FIELD: organic chemistry, medicine.
SUBSTANCE: invention describes a novel derivative of 9-(2-diethylaminoethyl)-2-phenylimidazo[1,2-a]benzimidazole, namely its hydrobromide, eliciting properties of antagonist of serotonin 5-HT3-receptors that can be used in therapy of cytotoxic nausea and vomiting. New salt is low toxic and exceeds bemesetron by anti-serotonin activity that is a selective 5-HT3- antagonist.
EFFECT: improved and valuable medicinal properties of derivative.
2 cl, 2 ex
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