Reaction catalyzed by cephaline 6'-O-methyltransferase (2.1.1.B84)

		+			=			+
	S-adenosyl-L-methionine	+		1alpha-(S)-N-deacetylisoipecoside	=		S-adenosyl-L-homocysteine	+		6-O-methyl-N-deacetylisoipecoside