| http://www.w3.org/ns/prov#value | - Alternatively, the 7-imino-2-methylsulfanyl derivatives can be acylated by reaction with an acyl halide or acyl anhydride, for example acetyl chloride or propionic anhydride, to provide the corresponding 7-acylimino-2-methylsulfanylpyridopyrimidines.
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