FIELD: chemistry.
SUBSTANCE: invention relates to processes for preparation of a compound of formula (I): 
. Method for preparing a compound GDC-0032, which is an inhibitor of PI3K, which can be used to prepare a compound of formula I on an industrial scale, where a special selection of reactions was carried out, the combination of which led to a reduction in the mass of reagents used while simultaneously eliminating harmful and dangerous reagents.
EFFECT: method for preparing compound GDC-0032, which is an inhibitor of PI3K, has been developed.
8 cl, 37 ex
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