Discovery of Potent and Selective Pyrazolopyrimidine Janus Kinase 2 Inhibitors
摘要:
The discovery of somatic Jak2 mutations in patients with chronic myeloproliferative neoplasms has led to significant interest in disc-ova-ring selective Jak2 inhibitors for use in treating these disorders. A high-throughput screening effort identified the pyrazolo[1,5-a]pyrimidine scaffold as a potent inhibit-or of Jak2. Optimization of lead compounds 7a-b and 8 in this chemical series for activity against Jak2, selectivity against other Jak family kinases, and good in vivo pharmacokinetic properties led to the discovery of 7j. In a SET2 xenograft model that is dependent on Jak2 for growth, 7j demonstrated a time-dependent knock-down of pSTAT5, a downstream target of Jak2.
PYRAZOLOPYRIMIDINE JAK INHIBITOR COMPOUNDS AND METHODS
申请人:Gibbons Paul
公开号:US20120190665A1
公开(公告)日:2012-07-26
A compound of Formula I, enantiomers, diasteriomers, tautomers or pharmaceutically acceptable salts thereof, wherein R
1
, R
2
and R
3
are defined herein, are useful as inhibitors of one or more Janus kinases. A pharmaceutical composition that includes a compound of Formula I and a pharmaceutically acceptable carrier, adjuvant or vehicle, and methods of treating or lessening the severity of a disease or condition responsive to the inhibition of a Janus kinase activity in a patient are disclosed.
[EN] PYRAZOLOPYRIMIDINE JAK INHIBITOR COMPOUNDS AND METHODS<br/>[FR] COMPOSÉS PYRAZOLOPYRIMIDINE INHIBITEURS DES JAK ET PROCÉDÉS
申请人:GENENTECH INC
公开号:WO2011003065A2
公开(公告)日:2011-01-06
A compound of Formula I, enantiomers, diasteriomers, tautomers or pharmaceutically acceptable salts thereof, wherein R1, R2 and R3 are defined herein, are useful as inhibitors of one or more Janus kinases. A pharmaceutical composition that includes a compound of Formula I and a pharmaceutically acceptable carrier, adjuvant or vehicle, and methods of treating or lessening the severity of a disease or condition responsive to the inhibition of a Janus kinase activity in a patient are disclosed.
Discovery of Potent and Selective Pyrazolopyrimidine Janus Kinase 2 Inhibitors
作者:Emily J. Hanan、Anne van Abbema、Kathy Barrett、Wade S. Blair、Jeff Blaney、Christine Chang、Charles Eigenbrot、Sean Flynn、Paul Gibbons、Christopher A. Hurley、Jane R. Kenny、Janusz Kulagowski、Leslie Lee、Steven R. Magnuson、Claire Morris、Jeremy Murray、Richard M. Pastor、Tom Rawson、Michael Siu、Mark Ultsch、Aihe Zhou、Deepak Sampath、Joseph P. Lyssikatos
DOI:10.1021/jm3012239
日期:2012.11.26
The discovery of somatic Jak2 mutations in patients with chronic myeloproliferative neoplasms has led to significant interest in disc-ova-ring selective Jak2 inhibitors for use in treating these disorders. A high-throughput screening effort identified the pyrazolo[1,5-a]pyrimidine scaffold as a potent inhibit-or of Jak2. Optimization of lead compounds 7a-b and 8 in this chemical series for activity against Jak2, selectivity against other Jak family kinases, and good in vivo pharmacokinetic properties led to the discovery of 7j. In a SET2 xenograft model that is dependent on Jak2 for growth, 7j demonstrated a time-dependent knock-down of pSTAT5, a downstream target of Jak2.