L-oleandrosyl-oleandolide + S-adenosyl-L-homocysteine + H(+) => L-olivosyl-oleandolide + S-adenosyl-L-methionine
l-oleandrosyl-oleandolide + s-adenosyl-l-homocysteine + h(+) => l-olivosyl-oleandolide + s-adenosyl-l-methionine