FIELD: chemistry.
SUBSTANCE: present invention pertains to mew compounds with formula (I), their pharmaceutical salts and ester derivatives. In general formula (I) 
n equals 0 or an integer from 1 to 4; Z is -(CHR8)m-, -(CH2)mO(CHR8)r-, -(CH2)mS(CHR8)r- or -(CH2)mNR9(CHR8)r-, L3 is -(CHR)S-, where R is represents hydrogen and s equals 1, Q2 is oxygen, X and Y independently represent CH or nitrogen; or -X=Y- represents sulphur, oxygen. Description of the rest of the radicals is given in the summary of invention.
EFFECT: invented compounds have inhibiting effects on PTPase.
12 cl, 3 dwg, 51 ex
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