Substituted tetrahydrofuroyl-1-phenylalanine derivatives as potent and specific VLA-4 antagonists
摘要:
A series of substituted tetra hydrofuroyl-1-phenylalanine derivatives was prepared and evaluated as VLA-4 antagonists. Substitution of the a carbon of the tetrahydrofuran with aryl groups increased the specificity for VLA-4 versus alpha(4)beta(7) while amide substitution increased the potency of the series without increasing the specificity. Substitution of the P carbon of the tetrahydrofuran with keto or amino groups slightly improved the specificity for VLA-4 versus alpha(4)beta(7) but with a significant loss in binding affinity for VLA-4. (C) 2002 Elsevier Science Ltd. All rights reserved.
N-Aryl 2,6-Dimethoxybiphenylalanine Analogues as VLA-4 Antagonists
作者:George A Doherty、Theodore Kamenecka、Ermenegilda McCauley、Gail Van Riper、Richard A Mumford、Sharon Tong、William K Hagmann
DOI:10.1016/s0960-894x(02)00009-4
日期:2002.3
A series of N-arylated phenylalanine derivatives has been synthesized and has been shown to be potent inhibitors of the integrin VLA-4. N-phenyl and N-heteroaryl derivatives with hydrogen bond acceptors in the meta position demonstrated low nanomolar activity against VLA-4. (C) 2002 Elsevier Science Ltd. All rights reserved.
N-Aryl-prolyl-dipeptides as potent antagonists of VLA-4
作者:Theodore M. Kamenecka、Thomas Lanza, Jr.、Stephen E. de Laszlo、Bing Li、Ermengilda D. McCauley、Gail Van Riper、Linda A. Egger、Usha Kidambi、Richard A. Mumford、Sharon Tong、Malcolm MacCoss、John A. Schmidt、William K. Hagmann
DOI:10.1016/s0960-894x(02)00356-6
日期:2002.8
The design, synthesis, and biological evaluation of N-arylprolyl-dipeptide derivatives as small molecule VLA-4 antagonists is described. Potency against VLA-4 and alpha(4)beta(7) and rat pharmacokinetic evaluation revealed some advantages over the related N-(arylsulfonyl)-prolyl-dipeptide analogues. (C) 2002 Elsevier Science Ltd. All rights reserved.