griseophenone D + S-adenosyl-L-methionine = griseophenone C + S-adenosyl-L-homocysteine
griseophenone d + s-adenosyl-l-methionine = griseophenone c + s-adenosyl-l-homocysteine
griseophenone D + S-adenosyl-L-methionine = griseophenone C + S-adenosyl-L-homocysteine
griseophenone d + s-adenosyl-l-methionine = griseophenone c + s-adenosyl-l-homocysteine