preferred_name: erythromycin A + S-adenosyl-L-homocysteine + H(+) => erythromycin C + S-adenosyl-L-methionine
preferred_name_lc: erythromycin a + s-adenosyl-l-homocysteine + h(+) => erythromycin c + s-adenosyl-l-methionine
label: erythromycin A + S-adenosyl-L-homocysteine + H(+) => erythromycin C + S-adenosyl-L-methionine
label_lc: erythromycin a + s-adenosyl-l-homocysteine + h(+) => erythromycin c + s-adenosyl-l-methionine