FIELD: organic chemistry, heterocyclic compounds, medicine, pharmacy.
SUBSTANCE: invention relates to new heterocyclic compounds corresponding to general formulas: (I) 
, (II) 
, (Ia) 
and (Ib) 
wherein substitutes have values given in the description. Such compounds are reversible inhibitors of cathepsins S, K, F, L and B. Also, invention relates to a method for preparing these compounds, pharmaceutical composition eliciting inhibitory activity with respect to cysteine proteases and to a method for modulation of autoimmune diseases, treatment of Alzheimer's disease and osteoporosis.
EFFECT: improved method for preparing, valuable medicinal properties of compounds.
42 cl, 106 ex
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