preferred_name: 1,7-dimethylxanthine + S-adenosyl-L-methionine => caffeine + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: 1,7-dimethylxanthine + s-adenosyl-l-methionine => caffeine + s-adenosyl-l-homocysteine + h(+)
label: 1,7-dimethylxanthine + S-adenosyl-L-methionine => caffeine + S-adenosyl-L-homocysteine + H(+)
label_lc: 1,7-dimethylxanthine + s-adenosyl-l-methionine => caffeine + s-adenosyl-l-homocysteine + h(+)