4-[2-(2-HYDROXY-2-PHENYLETHYLAMINO)ETHOXY]-PHENYLACETIC ACID OR ITS BIOPRECURSOR OR PHARMACEUTICALLY ACCEPTABLE SALT, METHOD OF ITS SYNTHESIS, COMPOSITION BASED ON THEREOF Russian patent published in 1997 - IPC

FIELD: organic chemistry. SUBSTANCE: product: 4-[2-(2-hydroxy-2-phenylethylamino)ethoxy]-phenylacetic acid of the formula 4-C₆H₅CH(OH)CH₂NHCH₂CH₂OC₆H₄CH₂COOH or its bioprecursor taken from amide or ester, or pharmaceutically acceptable salt and pharmaceutical composition. Reagent 1: styrene oxide. Reagent 2: 4-(H₂NCH₂CH₂O)C₆H₄CH₂COR⁴, COR⁴-amide group. Reaction conditions: at heating and at the following if necessary product hydrolysis to prepare acid and conversion of the latter if necessary to ester and product isolation if necessary as pharmaceutically acceptable salt. Synthesized compounds were used as bioactive substances and can be used in medicine. EFFECT: improved method of synthesis. 12 cl, 4 tbl