As it is an aromatic system, the pyridine ring is relatively resistant to cleavage, although to a lesser extent than benzene.[1,2] Historically, the first thoroughly studied reaction of this type was the Zincke König reaction[3] — cleavage of the quaternized pyridine ring by aromaticamines to form glutacondialdehyde dianils. Subsequently, a large number of reactions with ring opening and ring transformation
The invention relates to chemical compounds of formula (I):
or pharmaceutically acceptable salts thereof which possess CSF-1R kinase inhibitory activity and are accordingly useful for their anti-cancer activity and thus in methods of treatment of the human or animal body. The invention also relates to processes for the manufacture of said chemical compounds, to pharmaceutical compositions containing them and to their use in the manufacture of medicaments of use in the production of an anti-cancer effect in a warm-blooded animal such as man.
Shlyapnikov, D. S., Russian Journal of Inorganic Chemistry, 1983, vol. 28, p. 1292 - 1295
作者:Shlyapnikov, D. S.
DOI:——
日期:——
NOTES ON A FEW PYRIDINE ALKYL IODIDES.
作者:Albert B. Prescott
DOI:10.1021/ja02087a011
日期:1896.1
——
作者:S. P. Gromov、N. A. Kurchavov
DOI:10.1023/a:1025657529140
日期:——
Reactions of pyridinium salts or nonquaternized pyridine with 4-methylpyridinium salts ill the presence of methylammonium sulfite in aqueous methylamine afford 4-phenylpyridine in 29-57% yields. The probable mechanism of ring transformation in simplest pyridine derivatives under the action of nucleophiles is discussed.