Reaction catalyzed by quercetin 3-O-methyltransferase (2.1.1.76), flavonoid 3',5'-methyltransferase (2.1.1.267)

		+			=			+
	S-adenosyl-L-methionine	+		quercetin	=		S-adenosyl-L-homocysteine	+		3'-methoxyquercetin