(3R)-7,8-dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate + H2O2 => N-methyl-D-dopa + O2
(3r)-7,8-dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate + h2o2 => n-methyl-d-dopa + o2
(3R)-7,8-dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate + H2O2 => N-methyl-D-dopa + O2
(3r)-7,8-dihydroxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate + h2o2 => n-methyl-d-dopa + o2