FIELD: chemistry.
SUBSTANCE: invention relates to acid addition salts of formula (II-B)
where R1 is methyl; R2 is hydrogen; R3 is hydrogen; M is an inorganic acid or an organic acid, where said inorganic acid is sulfuric acid; and said organic acid is selected from the group consisting of ethanesulphonic acid and methanesulphonic acid; x is integer from 0 to 3; and y is integer 1, as well as to their crystalline forms, a method of producing a pharmaceutical composition and the use of an acid addition salt, a crystalline form or a pharmaceutical composition for producing a PI3K (phosphatidyl inositol-3-kinase)-inhibiting drug preparation.
EFFECT: obtaining novel acid addition salts of formula (II-B), which can be used to obtain a PI3K (phosphatidyl inositol-3-kinase)-inhibiting drug preparation.
25 cl, 16 tbl, 62 ex, 11 dwg
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