Non-Peptide Glycoprotein IIb/IIIa Antagonists. 11. Design and <i>in Vivo</i> Evaluation of 3,4-Dihydro-1(1<i>H</i>)-isoquinolinone-Based Antagonists and Ethyl Ester Prodrugs
作者:John H. Hutchinson、Jacquelynn J. Cook、Karen M. Brashear、Michael J. Breslin、Joan D. Glass、Robert J. Gould、Wasyl Halczenko、Marie A. Holahan、Robert J. Lynch、Gary R. Sitko、Maria T. Stranieri、George D. Hartman
DOI:10.1021/jm9604787
日期:1996.1.1
The structure-activity relationship of a series of orally active glycoprotein IIb/IIIa antagonists containing a nitrogen heterocycle grafted onto a 3,4-dihydro-1 (1H)-isoquinolinone core is described. These compounds are structurally novel analogs of the progenitor compound 1 (L-734,217,[[3(R)-[2-(piperidin-4-yl)ethyl]-2-oxopiperidinyl ]acetyl]-3(R)- methyl-beta-alanine) in which the lactam chiral
描述了一系列口服活性糖蛋白IIb / IIIa拮抗剂的结构-活性关系,这些拮抗剂包含接枝到3,4-二氢-1(1H)-异喹啉酮核心上的氮杂环。这些化合物是祖细胞化合物1(L-734,217,[[3(R)-[2-(哌啶丁-4-基)乙基] -2-氧代哌啶基]乙酰基] -3(R)-甲基- β-丙氨酸),其中内酰胺手性中心已被去除。发现4-哌嗪基-和4-哌啶基-取代的3,4-二氢-1(1H)-异喹啉酮是体外效价的最佳选择。另外,用最有效的3-吡啶基和3-乙炔基类似物取代β-氨基酸的3-位增强了效力。试图改善这些化合物的体内特性的尝试集中在物理性质的改变上。制备酯前药以增加亲脂性并去除拮抗剂的两性离子性质。前药方法与芳基哌嗪末端(pKa =约9.0)结合,可提供中等碱性和相对非极性的化合物。酸N-[[[7-(哌嗪-1-基)-3,4-二氢-1(1H)-氧代异喹啉-2-基]乙酰基] -3(S)-乙炔基-β-丙氨酸,6d(L