FIELD: medicine; pharmaceuticals.
SUBSTANCE: invention refers to a compound applicable in medicine, selected from compounds 3a and 3b, its pharmaceutically acceptable salts, a method for preparing it, pharmaceutical compositions based thereon for treating HIV and hepatitis B:
.
Method of producing involves the step of introducing tenofovir in reaction with benzyl halide or benzyl alcohol in the presence of bases to obtain an intermediate monobenzyl ester of tenofovir, which is introduced into reaction with corresponding amino acid ester.
EFFECT: novel effective agent for treating diseases caused by hepatitis B virus or HIV, as well as a method for production thereof.
5 cl, 11 tbl, 8 ex
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