2-Amino-N-pyrimidin-4-ylacetamides as A2A Receptor Antagonists: 1. Structure−Activity Relationships and Optimization of Heterocyclic Substituents
摘要:
Previously we have described a novel series of potent and selective A(2A) receptor antagonists (e.g., 1) with excellent aqueous solubility.(1) While these compounds are efficacious A(2A) antagonists in vivo, the presence of an unsubstituted furyl moiety was a cause of some concern. In order to avoid the potential metabolic liabilities that could arise from an unsubstituted fury] moiety, an optimization effort was undertaken with the aim of replacing the unsubstituted furan with a more metabolically stable group while maintaining potency and selectivity. Herein, we describe the synthesis and SAR of a range of novel heterocyclic systems and the successful identification of a replacement for the unsubstituted furan moiety with a methylfuran or thiazole moiety while maintaining potency and selectivity.
2-Amino-N-pyrimidin-4-ylacetamides as A2A Receptor Antagonists: 1. Structure−Activity Relationships and Optimization of Heterocyclic Substituents
摘要:
Previously we have described a novel series of potent and selective A(2A) receptor antagonists (e.g., 1) with excellent aqueous solubility.(1) While these compounds are efficacious A(2A) antagonists in vivo, the presence of an unsubstituted furyl moiety was a cause of some concern. In order to avoid the potential metabolic liabilities that could arise from an unsubstituted fury] moiety, an optimization effort was undertaken with the aim of replacing the unsubstituted furan with a more metabolically stable group while maintaining potency and selectivity. Herein, we describe the synthesis and SAR of a range of novel heterocyclic systems and the successful identification of a replacement for the unsubstituted furan moiety with a methylfuran or thiazole moiety while maintaining potency and selectivity.
Identification of Novel, Water-Soluble, 2-Amino-<i>N</i>-pyrimidin-4-yl Acetamides as A<sub>2A</sub> Receptor Antagonists with In Vivo Efficacy
作者:Deborah H. Slee、Xiaohu Zhang、Manisha Moorjani、Emily Lin、Marion C. Lanier、Yongsheng Chen、Jaimie K. Rueter、Sandra M. Lechner、Stacy Markison、Siobhan Malany、Tanya Joswig、Mark Santos、Raymond S. Gross、John P. Williams、Julio C. Castro-Palomino、María I. Crespo、Maria Prat、Silvia Gual、José-Luis Díaz、Jenny Wen、Zhihong O’Brien、John Saunders
DOI:10.1021/jm070623o
日期:2008.2.1
Potent adenosine hA(2A) receptor antagonists are often accompanied by poor aqueous solubility, which presents issues for drug development. Herein we describe the early exploration of the structure-activity relationships of a lead pyrimidin-4-yl acetamide series to provide potent and selective 2-amino-N-pyrimidin4-yl acetamides as hA(2A) receptor antagonists with excellent aqueous solubility. In addition, this series of compounds has demonstrated good bioavailability and in vivo efficacy in a rodent model of Parkinson's disease, despite having reduced potency for the rat A(2A) receptor versus the human A2A receptor.
2-Amino-<i>N</i>-pyrimidin-4-ylacetamides as A<sub>2A</sub> Receptor Antagonists: 1. Structure−Activity Relationships and Optimization of Heterocyclic Substituents
作者:Deborah H. Slee、Yongsheng Chen、Xiaohu Zhang、Manisha Moorjani、Marion C. Lanier、Emily Lin、Jaimie K. Rueter、John P. Williams、Sandra M. Lechner、Stacy Markison、Siobhan Malany、Mark Santos、Raymond S. Gross、Kayvon Jalali、Yang Sai、Zhiyang Zuo、Chun Yang、Julio C. Castro-Palomino、María I. Crespo、Maria Prat、Silvia Gual、José-Luis Díaz、John Saunders
DOI:10.1021/jm701185v
日期:2008.3.1
Previously we have described a novel series of potent and selective A(2A) receptor antagonists (e.g., 1) with excellent aqueous solubility.(1) While these compounds are efficacious A(2A) antagonists in vivo, the presence of an unsubstituted furyl moiety was a cause of some concern. In order to avoid the potential metabolic liabilities that could arise from an unsubstituted fury] moiety, an optimization effort was undertaken with the aim of replacing the unsubstituted furan with a more metabolically stable group while maintaining potency and selectivity. Herein, we describe the synthesis and SAR of a range of novel heterocyclic systems and the successful identification of a replacement for the unsubstituted furan moiety with a methylfuran or thiazole moiety while maintaining potency and selectivity.