On April 30, 2009, Barlaam, Bernard Christophe; Bower, Justin Fairfield; Delouvrie, Benedicte; Fairley, Gary; Harris, Craig Steven; Lambert, Christine; Ouvry, Gilles; Winter, Jon James Gordon published a patent.Category: pyrazoles-derivatives The title of the patent was Pyridine and pyrazine derivatives as Axl and/or c-Met receptor enzyme inhibitors and their preparation, pharmaceutical compositions and use in the treatment of tumors. And the patent contained the following:
The invention concerns pyridine a nd pyrazine derivatives of formula I or a pharmaceutically-acceptable salt thereof, processes for their preparation, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use in the treatment of tumors. Compounds of formula I wherein W is CH and N; J is O and S; each G1, G2, G3 and G4 is CH and N, proved that no more than two of G1,G2, G3 and R4 is N; A is (un)substituted Ph, (un)substituted 5- to 6-membered monocyclic heteroaryl; and (un)substituted 8- to 10-membered bicyclic ring; each R3 is independently H, halo, CN, amino, sulfamoyl, CF3, C1-8 alkyl, etc.; n is 0, 1, 2, and 3; and pharmaceutically acceptable salts thereof, are claimed. Example compound II was prepared by cyclization of 2-aminophenol with 2-amino-5-bromopyridine-3-carboxylic acid; the resulting 3-(benzoxazol-2-yl)-5-bromopyridin-2-amine underwent cross-coupling with 4-(dimethylaminomethyl)phenylboronic acid to give compound II. All the invention compounds were evaluated for their Axl and c-Met receptor tyrosine kinase inhibitory activity. From the Axl tyrosine kinase assay, it was determined that compound II exhibited 99.8 % inhibition at 1 μM concentration The experimental process involved the reaction of 5-Methoxy-1H-pyrazole(cas: 215610-30-3).Category: pyrazoles-derivatives
The Article related to pyridine preparation axl cmet tyrosine kinase inhibitor treatment tumor, pyrazine preparation axl cmet tyrosine kinase inhibitor treatment tumor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Category: pyrazoles-derivatives
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics