Discovery of a series of novel 5H-pyrrolo[2,3-b]pyrazine-2-phenyl ethers, as potent JAK3 kinase inhibitors
摘要:
We report the discovery of a novel series of ATP-competitive Janus kinase 3 (JAK3) inhibitors based on the 5H-pyrrolo[2,3-b]pyrazine scaffold. The initial leads in this series, compounds 1a and 1h, showed promising potencies, but a lack of selectivity against other isoforms in the JAK family. Computational and crystallographic analysis suggested that the phenyl ether moiety possessed a favorable vector to achieve selectivity. Exploration of this vector resulted in the identification of 12b and 12d, as potent JAK3 inhibitors, demonstrating improved JAK family and kinase selectivity. (C) 2013 Elsevier Ltd. All rights reserved.
Discovery of a series of novel 5H-pyrrolo[2,3-b]pyrazine-2-phenyl ethers, as potent JAK3 kinase inhibitors
摘要:
We report the discovery of a novel series of ATP-competitive Janus kinase 3 (JAK3) inhibitors based on the 5H-pyrrolo[2,3-b]pyrazine scaffold. The initial leads in this series, compounds 1a and 1h, showed promising potencies, but a lack of selectivity against other isoforms in the JAK family. Computational and crystallographic analysis suggested that the phenyl ether moiety possessed a favorable vector to achieve selectivity. Exploration of this vector resulted in the identification of 12b and 12d, as potent JAK3 inhibitors, demonstrating improved JAK family and kinase selectivity. (C) 2013 Elsevier Ltd. All rights reserved.
[EN] PYRROLOPYRAZINE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE PYRROLOPYRAZINE KINASE
申请人:HOFFMANN LA ROCHE
公开号:WO2013030138A1
公开(公告)日:2013-03-07
The present invention relates to the use of novel pyrrolopyrazine derivatives of Formula I, wherein the variables are defined as described herein, which inhibit JAK and SYK and are useful for the treatment of auto-immune and inflammatory diseases.
The present invention relates to the use of novel pyrrolopyrazine derivatives of Formula I,
wherein the variables are defined as described herein, which inhibit JAK and SYK and are useful for the treatment of auto-immune and inflammatory diseases.
The present invention relates to the use of novel pyrrolopyrazine derivatives of Formula I,
wherein the variables are defined as described herein, which inhibit JAK and SYK and are useful for the treatment of auto-immune and inflammatory diseases.
3-Amido Pyrrolopyrazine JAK Kinase Inhibitors: Development of a JAK3 vs JAK1 Selective Inhibitor and Evaluation in Cellular and in Vivo Models
作者:Michael Soth、Johannes C. Hermann、Calvin Yee、Muzaffar Alam、Jim W. Barnett、Pamela Berry、Michelle F. Browner、Karl Frank、Sandra Frauchiger、Seth Harris、Yang He、Mohammad Hekmat-Nejad、Than Hendricks、Robert Henningsen、Ramona Hilgenkamp、Hoangdung Ho、Ann Hoffman、Pei-Yuan Hsu、Dong-Qing Hu、Andrea Itano、Saul Jaime-Figueroa、Alam Jahangir、Sue Jin、Andreas Kuglstatter、Alan K. Kutach、Cheng Liao、Stephen Lynch、John Menke、Linghao Niu、Vaishali Patel、Aruna Railkar、Douglas Roy、Ada Shao、David Shaw、Sandra Steiner、Yongliang Sun、Seng-Lai Tan、Sandra Wang、Minh Diem Vu
DOI:10.1021/jm301646k
日期:2013.1.10
The Janus kinases (JAKs) are involved in multiple signaling networks relevant to inflammatory diseases, and inhibition of one or more members of this class may modulate disease activity or progression. We optimized a new inhibitor scaffold, 3-amido-5-cyclopropylpyrrolopyrazines, to a potent example with reasonable kinome selectivity, including selectivity for JAK3 versus JAK1, and good biopharmaceutical properties. Evaluation of this analogue in cellular and in vivo models confirmed functional selectivity for modulation of a JAK3/JAK1-dependent IL-2 stimulated pathway over a JAK1/JAK2/Tyk2-dependent IL-6 stimulated pathway.