A compound having a structure represented by formula (I), ** Formula ** in which R0 is NHR1a, NHC (>； = O) OR1b, NHC (>； = O) NHR1b, OC (>； = O) NHR1b, (CH2) 1-4NHR1a, F, Cl, Br, OR1a or SR1b； R1a is H, C1-C6 alkyl, (CH2) nNH2, C (>； = O) (CH2) nNH2, C (>； = O) CHR8NH2 or C (>； = O) R9NH2； ** Formula ** R1b is H, C1-C6 alkyl, (CH2) nNH2； R2 is H, R10, C (>； = O) R10 or C (>； = O) OR10； R3 is H or C1-C6 substituted or unsubstituted alkyl； R4 is OH, SH, NH2, OR10, SR10, NHR10, N (R10) 2, NHC (>； = O) OR10, OC (>； = O) NHR1b, OC (>； = O) R10, SC (>； = O) R10 or NHC (>； = O) R10； R5 is OH, SH, NH2, OR10, SR10, NHR10, N (R10) 2, NHC (>； = O) OR10, OC (>； = O) NHR1b, OC (>； = O) R10, SC (>； = O) R10 or NHC (>； = O) R10； R6 is H or C1-C6 substituted or unsubstituted alkyl； or R5 and R6 combine to form>； = O； R7 is OH, SH, NH2, OR10, SR10, NHR10, N (R10) 2, NHC (>； = O) OR10, OC (>； = O) NHR1b, OC (>； = O) R10, SC (>； = O) R10 or NHC (>； = O) R10； R8 is the rest of the side chain of an α-amino acid selected from the group consisting of alanine, arginine, asparagine, aspartic acid, γ-carboxyglutamic acid, citrulline, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, norleucine, norvaline, ornithine, phenylalanine, serine, threonine, tryptophan, tyrosine and valine； R9 is substituted or unsubstituted arylene, substituted or unsubstituted heteroarylene, substituted or unsubstituted alkylarylene, substituted or unsubstituted cycloalkylene or substituted or unsubstituted heterocycloalkylene； each R10 is independently substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted arylalkyl, substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl； wherein the substituents of the substituted moieties are independently selected from each other of alkyl, alkenyl, alkynyl, ary
