FIELD: chemistry.
SUBSTANCE: invention relates to compounds of formula I and their pharmaceutically acceptable salts. In formula I 
R1 is a halide, (C1-C6)alkyl or (C1-C6)alkoxy group; R2 is hydrogen; R3 is phenyl, substituted with one or two substitutes independently selected from a group comprising halide(C1-C6)alkyl, halide and a cyano group; R4 is CH2OH, CH2OC(=O)(CH2)2C(=O)OH or CH2OC(=O)(C1-C6)alkyl; R5 is (C1-C6)alkyl. The invention also relates to use of the compounds to make a medicinal agent, to a pharmaceutical composition containing a therapeutically effective amount of the compound and to a method of obtaining formula I compounds.
EFFECT: obtaining compounds with HIV reverse transcriptase inhibiting properties.
9 cl, 2 tbl,11 ex
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