Bone-Targeted Src kinase inhibitors: novel pyrrolo- and pyrazolopyrimidine analogues
作者:Raji Sundaramoorthi、William C. Shakespeare、Terence P. Keenan、Chester A. Metcalf、Yihan Wang、Ukti Mani、Merry Taylor、Shuangying Liu、Regine S. Bohacek、Surinder S. Narula、David C. Dalgarno、Marie Rose Van Schravandijk、Sheila M. Violette、Shuenn Liou、Susan Adams、Mary K. Ram、Jeffrey A. Keats、Manfred Weigele、Tomi K. Sawyer
DOI:10.1016/s0960-894x(03)00647-4
日期:2003.9
Src tyrosine kinase is a therapeutic target for bone diseases that has been validated by gene knockout studies. Furthermore, in vitro cellular studies implicate that Src has a positive regulatory role in osteoclasts and a negative regulatory role in osteoblasts. The potential use of Src inhibitors for osteoporosis therapy has been previously shown by novel bone-targeted ligands of the Src SH2 (e.g., AP22408) and non-bone-targeted, ATP-based inhibitors of Src kinase. Significant to this study, compounds 212 exemplify novel analogues of known pyrrolopyrimidine and pyrazolopyrimidine template-based Src kinase inhibitors that incorporate bone-targeting group modifications designed to provide tissue (bone) selectivity and diminished side effects. Accordingly, we report here the structure-based design, synthetic chemistry and biological testing of these compounds and proof-of-concept studies thereof. (C) 2003 Elsevier Ltd. All rights reserved.