CYCLIC PEPTIDE, AFFINITY CHROMATOGRAPHY SUPPORT, LABELED ANTIBODY, ANTIBODY-DRUG CONJUGATE, AND PHARMACEUTICAL PREPARATION
申请人:FUJIFILM Corporation
公开号:EP3366693A1
公开(公告)日:2018-08-29
Provided is a cyclic peptide, which is represented by Formula (I) or Formula (I') and has excellent antibody binding properties and improved chemical resistance, an affinity chromatography support, a labeled antibody, an antibody drug conjugate, and a pharmaceutical preparation.
RN-Xg-[Xi-Xa-Xm-X1-X2-X3-Xn-Xb-Xj]k-Xh-RC ··· (I)
In Formula (I), Xa and Xb each independently represent an amino acid residue derived from an amino acid, other than L-cysteine and D-cysteine, having a thiol group on a side chain and are bonded to each other through a disulfide bond, or, one of Xa and Xb represents an amino acid residue derived from an amino acid, other than L-cysteine and D-cysteine, having a thiol group on a side chain and the other represents an amino acid residue derived from an amino acid having a haloacetyl group on a side chain, and Xa and Xb are bonded to each other through a thioether bond.
RN-Xg-[Xi-Xa-Xm-X1-X2-X3-Xn-Xb-Xj]k-Xh-RC ··· (I')
In Formula (I'), one of Xa and Xb represents an amino acid residue derived from L-cysteine or D-cysteine and the other represents an amino acid residue derived from an amino acid having a haloacetyl group on a side chain, and Xa and Xb are bonded to each other through a thioether bond, or, one of Xa and Xb represents an amino acid residue derived from L-penicillamine or D-penicillamine and the other represents an amino acid residue derived from an amino acid having a haloacetyl group on a side chain, and Xa and Xb are bonded to each other through a thioether bond.
本发明提供了一种由式(I)或式(I')表示的环肽,它具有优异的抗体结合性能和更好的耐化学性,还提供了一种亲和层析支持物、一种标记抗体、一种抗体药物共轭物和一种药物制剂。
RN-Xg-[Xi-Xa-Xm-X1-X2-X3-Xn-Xb-Xj]k-Xh-RC --- (I)
在式(I)中,Xa 和 Xb 各自独立地代表一种氨基酸残基,该氨基酸残基衍生自 L-半胱氨酸和 D-半胱氨酸以外的氨基酸,其侧链上具有硫醇基团,并通过二硫键相互结合;或者,Xa 和 Xb 之一代表一种氨基酸残基,该氨基酸残基衍生自 L-半胱氨酸和 D-半胱氨酸以外的氨基酸、除 L-半胱氨酸和 D-半胱氨酸外,另一个代表氨基酸残基,该氨基酸残基衍生自侧链上具有硫醇基团的氨基酸,且 Xa 和 Xb 通过硫醚键相互结合。
RN-Xg-[Xi-Xa-Xm-X1-X2-X3-Xn-Xb-Xj]k-Xh-RC --- (I')
在式(I')中,Xa 和 Xb 中的一个代表衍生自 L-半胱氨酸或 D-半胱氨酸的氨基酸残基,另一个代表衍生自侧链上带有卤乙酰基的氨基酸的氨基酸残基,并且 Xa 和 Xb 通过硫醚键相互结合、或 Xa 和 Xb 中的一个代表衍生自 L-青霉胺或 D-青霉胺的氨基酸残基,另一个代表衍生自侧链上带有卤乙酰基的氨基酸的氨基酸残基,且 Xa 和 Xb 通过硫醚键相互结合。