July 29, 2013

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The following patent record is from the CAplusSM database.

CAPLUS COPYRIGHT 2013 ACS

Patent Number: WO 2013063214
Title: Preparation of pyrazolo[4,3-c]pyridines as ERK inhibitors for cancer treatment
Inventor(s):

Lim, Jongwon; Kelley, Elizabeth Helen; Methot, Joey L.; Zhou, Hua; Petrocchi, Alessia; Mansoor, Umar Faruk; Fischer, Christian; O'Boyle, Brendan M.; Guerin, David Joseph; Bienstock, Corey E.; Boyce, Christopher W.; Daniels, Matthew H.; Falcone, Danielle; Ferguson, Ronald D., II; Fevrier, Salem; Huang, Xianhai; Lipford, Kathryn Ann; Sloman, David L.; Wilson, Kevin; Zhou, Wei; Witter, David; Maletic, Milana M.; Siliphaivanh, Phieng

Patent Assignee(s): Merck Sharp & Dohme Corp., USA
Source: PCT Int. Appl., 323pp. CODEN: PIXXD2
Language: English

Abstract:
Disclosed are the ERK inhibitors of formula I (wherein X is S or O; R1 is H, halo, CN, (un)substituted heteroaryl, etc.; R2 is H, (C1-6)alkyl, (un)substituted aryl, etc.; R3 is H, (C1-6)alkyl, (un)substituted aryl, etc.; R4 is H, halo, (C1-C6)alkyl, OH and NH2) and the pharmaceutically acceptable salts thereof.  Also disclosed are methods of treating cancer using the compds. of formula I an of synthesizing compds. of formula I. Example compd. II was prepd. from intermediate III and 1-(tert-butoxycarbonyl)piperidine-3-carboxylic acid in the presence of diphenylphosphoryl azide and TEA.  In an active mouse ERK2 activity assay, II had an IC50 of 3.13 nM.

Please note:  Abstracts and Titles for patent records in CAplus are routinely enhanced to better describe the claimed invention.

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