Kolycheva, M. T. published the artcileFluorine-containing amino acids. VII. Polyfluoroalkoxy and polyfluoromethylthio derivatives of phenylalanine, COA of Formula: C8H6BrF3S, the publication is Zhurnal Organicheskoi Khimii (1989), 25(6), 1306-11, database is CAplus.
Condensation of benzyl bromides p-RC6H4CH2Br (R = polyfluoroalkoxy or polyfluoromethylthio) with OCHNHCH(CO2Et)2, followed by saponification and acidolytic decarboxylation, afforded phenylalanine derivatives p-RC6H4CH2CH(NH2)CO2H. Benzaldehydes p-RC6H4CHO (R = F2CHO, C2F5O) condensed with acylglycines R1CO-Gly-OH (R1 = Me, Ph) to give oxazolinones I, which were cleaved to the amino acids by hydrogenolysis in the presence of PdCl2 and Et3N or by HI-P in AcOH.
Zhurnal Organicheskoi Khimii published new progress about 21101-63-3. 21101-63-3 belongs to bromides-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Bromide,sulfides,Benzyl bromide,Benzene, name is (4-(Bromomethyl)phenyl)(trifluoromethyl)sulfane, and the molecular formula is C8H6BrF3S, COA of Formula: C8H6BrF3S.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary