label: 6-O-methylnorlaudanosoline + S-adenosyl-L-methionine = nororientaline + S-adenosyl-L-homocysteine + H(+)
label_lc: 6-o-methylnorlaudanosoline + s-adenosyl-l-methionine = nororientaline + s-adenosyl-l-homocysteine + h(+)