label: 6-O-methyl-N-deacetylisoipecoside + S-adenosyl-L-homocysteine + H(+) => N-deacetylisoipecoside + S-adenosyl-L-methionine
label_lc: 6-o-methyl-n-deacetylisoipecoside + s-adenosyl-l-homocysteine + h(+) => n-deacetylisoipecoside + s-adenosyl-l-methionine