[EN] NOVEL RADIOLABELLED CXCR4-TARGETING COMPOUNDS FOR DIAGNOSIS AND THERAPY<br/>[FR] NOUVEAUX COMPOSÉS RADIOMARQUÉS DIAGNOSTIQUES ET THÉRAPEUTIQUES CIBLANT CXCR4
申请人:PROVINCIAL HEALTH SERVICES AUTHORITY
公开号:WO2020210919A1
公开(公告)日:2020-10-22
This application relates to compounds of Formula (I): [targeting peptide]-N(R1)-X1(R2)L1-[linker]-RX n1 (I). The targeting peptide is cyclo[L-Phe-L-Tyr-L-Lys(iPr)-D-Arg-L-2-Nal-Gly-D-Glu]-L-Lys(iPr). R1 is H or methyl. X1 is an optionally substituted C1-C15 hydrocarbon optionally comprising heteroatoms. R2 is C(O)OH or C(O)NH2. L1 is a linkage (thiolether, amide, maleimide-thiol, triazole). The linker has a net negative charge at physiological pH and is a linear or branched chain of 1-10 units of X2L2 and/or X2(L2)2, wherein: each X2 is, independently, an optionally substituted C1-C15 hydrocarbon optionally comprising heteroatoms; and each L2 is a linkage. The linker optionally further comprises an albumin binder bonded to an L2. Each RX is a radiolabelling group linked through a separate L2, selected from: a metal chelator; a prosthetic group containing trifluoroborate (BF3); or a prosthetic group containing a silicon-fluorine-acceptor moiety. The compounds may be useful for imaging CXCR4-expressing tissues or for treating CXCR4-associated diseases or conditions (e.g. cancer).
这个应用涉及到Formula (I)的化合物:[靶向肽]-N(R1)-X1(R2)L1-[连接物]-RX n1 (I)。靶向肽是cyclo[L-Phe-L-Tyr-L-Lys(iPr)-D-Arg-L-2-Nal-Gly-D-Glu]-L-Lys(iPr)。R1是H或甲基。X1是一个可选择地取代的含有杂原子的C1-C15烃。R2是C(O)OH或C(O)NH2。L1是一个连接物(硫醚、酰胺、马来酰亚胺-硫醇、三唑)。连接物在生理pH下具有净负电荷,是由1-10个X2L2和/或X2(L2)2的线性或支链构成,其中:每个X2独立地是一个可选择地取代的含有杂原子的C1-C15烃;每个L2是一个连接物。连接物可选择地进一步包括与L2结合的白蛋白结合剂。每个RX是通过单独的L2连接的放射标记基团,选自:金属螯合剂;含三氟硼酸盐(BF3)的假体基团;或含硅-氟受体基团的假体基团。这些化合物可能对于成像CXCR4表达组织或治疗与CXCR4相关的疾病或症状(如癌症)有用。