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2-Amino-5-bromo-3-cyanopyrazine

Amino-5-bromo-3-cyanopyrazine is an intermediate in the construction of pteridines. Before forming the fused pyrimidine ring, the pyrazine is alkynylated in the 5-position (82) in moderate to good yields (87JOC3997 88JOC35). [Pg.322]

Bromination of 2-amino-3-cyanopyrazine in acetic acid gave 2-amino-5-bromo-... [Pg.98]

See other pages where 2-Amino-5-bromo-3-cyanopyrazine is mentioned: [Pg.248]    [Pg.285]    [Pg.98]    [Pg.120]    [Pg.129]    [Pg.287]    [Pg.248]   
See also in sourсe #XX -- [ Pg.98 ]



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