申请人:Takeda Chemical Industries, Ltd.
公开号:EP0529858A1
公开(公告)日:1993-03-03
The compounds of the formula
wherein G stands for an amidino group or an optionally cyclic amino group, these being respectively optionally substituted; D stands for a spacer having 2 to 6 atomic chain optionally bonded through a hetero-atom and/or a 5- to 6-membered ring (provided that the 5- to 6-membered ring is, depending on its bonding position, counted as 2 to 3 atomic chains); R¹ stands for hydrogen, benzyl group or a lower alkyl group; R² and R³ independently stand for a residual group formed by removing -CH(NH₂)COOH from an α-amino acid, or R¹ and R² may form a 5- to 6-membered ring taken together with the adjacent N and C; X stands for hydrogen or an optionally substituted lower alkyl group; and Z stands for a group capable of forming an anion or a group convertible into an anion in a living body, or salts thereof and agents for inhibiting cell-adhesion, which are characterized by containing these compounds. The novel compounds and pharmaceutical agents are effective for prophylaxis and therapy of various diseases by controlling or inhibiting cell adhesion.
式中的化合物
其中,G 代表脒基或任选环状氨基,它们分别被任选取代;D 代表具有 2 至 6 个原子链的间隔物,可任选通过杂原子和/或 5 至 6 元环结合(条件是 5 至 6 元环根据其结合位置可被视为 2 至 3 个原子链);R¹ 代表氢、苄基或低级烷基;R²和R³分别代表通过从α-氨基酸中去除-CH(NH₂)COOH而形成的残基,或者R¹和R²可与相邻的N和C一起形成5-6元环;X代表氢或任选取代的低级烷基;Z代表能够在活体内形成阴离子的基团或可转化为阴离子的基团,或其盐类和抑制细胞粘附的药剂,其特征在于含有这些化合物。这些新型化合物和药剂通过控制或抑制细胞粘附,可有效预防和治疗各种疾病。