label: dihydromacarpine + S-adenosyl-L-homocysteine + H(+) => 12-hydroxydihydrochelirubine + S-adenosyl-L-methionine
label_lc: dihydromacarpine + s-adenosyl-l-homocysteine + h(+) => 12-hydroxydihydrochelirubine + s-adenosyl-l-methionine