[EN] RADIOLABELED BOMBESIN-DERIVED COMPOUNDS FOR IN VIVO IMAGING OF GASTRIN-RELEASING PEPTIDE RECEPTOR (GRPR) AND TREATMENT OF GRPR-RELATED DISORDERS<br/>[FR] COMPOSÉS RADIOMARQUÉS DÉRIVÉS DE LA BOMBÉSINE POUR L'IMAGERIE IN VIVO DU RÉCEPTEUR DU PEPTIDE LIBÉRANT DE LA GASTRINE (GRPR) ET TRAITEMENT DES TROUBLES LIÉS AU GRPR
申请人:PROVINCIAL HEALTH SERVICES AUTHORITY
公开号:WO2021068051A1
公开(公告)日:2021-04-15
There is provided bombesin-derived compounds of Formula Ia (RX-L-Xaa1-Gln-Trp-Ala-Val-Xaa2-His-Xaa3-ψ-Xaa4-NH2). RX comprises a radionuclide chelator or a trifluoroborate-containing prosthetic group. L is a linker. Xaa1 is D-Phe, Cpa (4-chlorophenylalanine), D-Cpa, Tpi (2,3,4,9-tetrahydro-1H-pyrido[3,4b]indol-3-carboxylic acid), D-Tpi, Nal (naphthylalanine), or D-Nal. Xaa2 is Gly, N-methyl-Gly or D-Ala. Xaa3 is Leu, Pro, D-Pro, or Phe. Xaa4 is Pro, Phe, Tac (thiazolidine-4-carboxylic acid), Nle (norleucine), 4-oxa-L-Pro (oxazolidine-4-carboxylic acid). The symbol ψ represents a reduced peptide bond between Xaa3 and Xaa4 in which ψ is CH2-N when Xaa4 is Pro, Tac or 4-oxa-L-Pro, or ψ is CH2N(R) when Xaa4 is Phe or Nle wherein R is H or C1-C5 linear or branched alkyl. There is also provided the use of such compounds as imaging agents or therapeutic agents.
提供了Formula Ia(RX-L-Xaa1-Gln-Trp-Ala-Val-Xaa2-His-Xaa3-ψ-Xaa4-NH2)的波美斯因衍生物。RX包括放射性同位素螯合剂或三氟硼酸酯含基团。L是连接剂。Xaa1是D-Phe,Cpa(4-氯苯丙氨酸),D-Cpa,Tpi(2,3,4,9-四氢-1H-吡啶[3,4b]吲哚-3-羧酸),D-Tpi,Nal(萘丙氨酸)或D-Nal。Xaa2是Gly,N-甲基-Gly或D-Ala。Xaa3是Leu,Pro,D-Pro或Phe。Xaa4是Pro,Phe,Tac(噻唑啉-4-羧酸),Nle(正癸氨酸),4-氧代-L-Pro(噁唑啉-4-羧酸)。符号ψ代表Xaa3和Xaa4之间的还原肽键,其中当Xaa4为Pro,Tac或4-氧代-L-Pro时,ψ为CH2-N,或当Xaa4为Phe或Nle时,ψ为CH2N(R),其中R为H或C1-C5线性或支链烷基。还提供了将这些化合物用作成像剂或治疗剂的用途。