Reaction catalyzed by N-acylneuraminate cytidylyltransferase (2.7.7.43), 3-deoxy-D-glycero-D-galacto-nonulopyranosonate cytidylyltransferase (2.7.7.92)

		+			=			+
	CTP	+		3-deoxy-D-glycero-D-galacto-nononate	=		diphosphate	+		CMP-3-deoxy-D-glycero-D-galacto-nononate