preferred_name: theobromine + S-adenosyl-L-methionine <=> caffeine + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: theobromine + s-adenosyl-l-methionine <=> caffeine + s-adenosyl-l-homocysteine + h(+)
label: theobromine + S-adenosyl-L-methionine <=> caffeine + S-adenosyl-L-homocysteine + H(+)
label_lc: theobromine + s-adenosyl-l-methionine <=> caffeine + s-adenosyl-l-homocysteine + h(+)