FIELD: chemistry.
SUBSTANCE: disclosed are copolymers of N-vinyl pyrrolidone of general formula (I), where the monomer link M is a fragment of 2-methyl-5-vinyl tetrazole (MVT) or 2-methyl-5-vinyl pyridine (MVP) and content of the monomer links n is equal to 25-50 mol %, and viscosity-average molecular weight Mµ of the copolymer depends on the nature of M: if M is MVT, Mµ=30-50 kDa; if M is MVP Mµ=15-28 kDa, and use thereof as phagocytosis activators. 
.
EFFECT: wider range of biologically active compounds based on N-vinyl pyrrolidone, suitable for use as phagocytosis activators.
3 cl, 2 tbl, 6 ex
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