CCK2 receptor antagonists containing the conformationally constrained phenylalanine derivatives, including the new amino acid Xic
作者:Susan E Gibson (née Thomas)、Nathalie Guillo、Jerome O Jones、Ildiko M Buck、S.Barret Kalindjian、Sonia Roberts、Matthew J Tozer
DOI:10.1016/s0223-5234(02)01351-x
日期:2002.5
The conformationally constrained analogues of phenylalanine, tetrahydroisoquinoline-3-carboxylic acid (Tic), Sic, Hic and Nic, and the new amino acid Xic have been incorporated into a potent and highly selective cholecystokinin-2 (CCK(2)) receptor antagonist (2) in place of the phenylalanine residue, producing compounds 15a-e. High selectivities for CCK(2) over CCK(1) were observed for compounds 15a-e
苯丙氨酸,四氢异喹啉-3-羧酸(Tic),Sic,Hic和Nic以及新氨基酸Xic的构象约束类似物已被纳入有效且高度选择性的胆囊收缩素2(CCK(2))受体拮抗剂( 2)代替苯丙氨酸残基,产生化合物15a-e。对于化合物15a-e,与CCK(1)相比,CCK(2)的选择性高。含有Nic残基(15d)的类似物的体外概况与化合物2相同,而其他构象限制条件则导致亲和力显着下降。Nic在这些CCK(2)配体的上下文中的明显优势随后被证明具有统计学意义。