7'-O-demethylcephaeline + S-adenosyl-L-methionine => cephaeline + S-adenosyl-L-homocysteine + H(+)
7'-o-demethylcephaeline + s-adenosyl-l-methionine => cephaeline + s-adenosyl-l-homocysteine + h(+)
7'-O-demethylcephaeline + S-adenosyl-L-methionine => cephaeline + S-adenosyl-L-homocysteine + H(+)
7'-o-demethylcephaeline + s-adenosyl-l-methionine => cephaeline + s-adenosyl-l-homocysteine + h(+)