FIELD: chemistry.
SUBSTANCE: invention refers to new derivatives of hydrochloride 8-amino-7-(2-hydroxypropyl-1)-1,3-dimethylxanthine of general formula: 
where 
. Compounds under this invention display haemorheological activity surpassing that of common pentoxifylline compound. Compounds represent hydrochloride 1,3-dimethy-7-(2-hydroxy-3- piperidinopropyl-1)-8-phenylaminoxanthine or hydrochloride 1,3- dimethy-7-[2-hydroxy-3-(2- chlorophenoxy)-propyl-1]-8- piperazinoxanthine.
EFFECT: production of compounds displaying haemorheological activity.
4 cl, 2 tbl, 4 ex
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