label: 6,7-O,O-bismethyldeacetylisoipecoside + S-adenosyl-L-homocysteine + H(+) => 7-O-methyldeacetylisoipecoside + S-adenosyl-L-methionine
label_lc: 6,7-o,o-bismethyldeacetylisoipecoside + s-adenosyl-l-homocysteine + h(+) => 7-o-methyldeacetylisoipecoside + s-adenosyl-l-methionine