preferred_name: a secondary amine + S-adenosyl-L-methionine <=> a methylated secondary amine + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: a secondary amine + s-adenosyl-l-methionine <=> a methylated secondary amine + s-adenosyl-l-homocysteine + h(+)
label: a secondary amine + S-adenosyl-L-methionine <=> a methylated secondary amine + S-adenosyl-L-homocysteine + H(+)
label_lc: a secondary amine + s-adenosyl-l-methionine <=> a methylated secondary amine + s-adenosyl-l-homocysteine + h(+)