FIELD: pharmacology.
SUBSTANCE: invention relates to a formula III compound or pharmaceutically acceptable salts thereof, which is a new key intermediate in schistosomicide praziquantel synthesis. The invention also relates to a method for production of formula III compound, method for production of formula IV compound and application of formula III compound or its pharmaceutically acceptable salts to obtain schistosomicide praziquantel.
EFFECT: improved method.
12 cl, 15 ex
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