ID 2.1.1.121 DE 6-O-methylnorlaudanosoline 5'-O-methyltransferase. CA 6-O-methylnorlaudanosoline + S-adenosyl-L-methionine = H(+) + CA nororientaline + S-adenosyl-L-homocysteine. CC -!- Nororientaline is a precursor of the alkaloid papaverine. //