The invention relates to a compound containing
double bond substitution as a PTPN1 and / or PTPN2 inhibitor and application thereof, in particular to a compound shown in a formula (I), a
tautomer, a stereoisomer or pharmaceutically acceptable salt of the compound, a preparation method of the
tautomer, the stereoisomer or the pharmaceutically acceptable salt of the compound, and application of the
tautomer, the stereoisomer or the pharmaceutically acceptable salt in preparation of drugs for treating PTPN1 and / or PTPN2 related diseases.