| abstract |
FIELD: chemistry. n SUBSTANCE: invention relates to intermediate compounds of formula (i-3) and (ii-4), in which R is selected from a group consisting of H, C 1-8 alkyl, aryl and aryl-C 1-4 alkyl, R 1 is Cl or CF 3 , or salt thereof. Invention also relates to a method of producing a compound of formula (I), where R 1 is Cl or CF 3 , R 2 is F or Cl and R 3 is H or CH 3 or to its salt. n (i-3)…… (ii-4) n (I) n EFFECT: technical result is obtaining novel compounds which can be used in producing the final compound of formula (I), which can be used in medicine as C5aR antagonists. n 35 cl, 4 dwg, 4 ex |