Reaction catalyzed by strictosidine synthase (4.3.3.2)

		+			=			+		H2O
	methyl (2R,4S)-2-(2-methylpropoxy)-4-(2-oxoethyl)-3,4-dihydro-2H-pyran-5-carboxylate	+		tryptamine	=		methyl (2R,4S)-2-(2-methylpropoxy)-4-[(1S)-2,3,4,9-tetrahydro-1H-beta-carbolin-1-ylmethyl]-3,4-dihydro-2H-pyran-5-carboxylate	+		H2O