On December 9, 2021, Kaldor, Stephen W.; Tyhonas, John; Murphy, Eric A.; Kanouni, Toufike; Arnold, Lee D.; Kania, Robert; Cox, Jason M. published a patent.Safety of 5-Bromo-4-chloro-2-fluoroaniline The title of the patent was Pyrazolecarboxamides as inhibitors of fibroblast growth factor receptor kinases and their preparation. And the patent contained the following:
Provided herein are heteroaryl compounds as inhibitors of fibroblast growth factor receptor kinases, pharmaceutical compositions comprising said compounds, and methods for using said compounds for the treatment of diseases. Compounds of formula I wherein Z is (un)substituted alkenoyl, (un)substituted alkynoyl, (un)substituted cyanoacetyl, etc.; R is H, (un)substituted C1-6 alkyl, (un)substituted C3-7 carbocyclyl, (un)substituted C3-7 heterocyclyl, etc.; R4 is (un)substituted 9- to 10-membered heteroaryl; R6 is (un)substituted alkyl (un)substituted carbocyclylalkyl and (un)substituted heterocyclylalkyl; and pharmaceutically acceptable salts and solvates thereof, are claimed. Example compound II was prepared by coupling of 3-bromo-1-[(3S,5R)-5-(methoxymethyl)-1-(prop-2-enoyl)pyrrolidin-3-yl]-5-(methylamino)pyrazole-4-carboxamide and 5-ethynyl-2-methylbenzimidazole. The invention compounds were evaluated for their FGFR2 kinase inhibitory activity. From the assay, it was determined that compound II exhibited IC50 value of ≤ 0.10μM. The experimental process involved the reaction of 5-Bromo-4-chloro-2-fluoroaniline(cas: 111010-07-2).Safety of 5-Bromo-4-chloro-2-fluoroaniline
The Article related to pyrazolecarboxamide preparation fgfr2 inhibitor, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazoles and other aspects.Safety of 5-Bromo-4-chloro-2-fluoroaniline
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary