Reaction catalyzed by phosphooxymethylpyrimidine kinase (2.7.4.7)

	ATP	+			=		ADP	+
	ATP	+		4-amino-2-methyl-5-(phosphooxymethyl)pyrimidine	=		ADP	+		4-amino-2-methyl-5-(diphosphooxymethyl)pyrimidine