preferred_name: precorrin-3A + S-adenosyl-L-homocysteine + H(+) => precorrin-2 + S-adenosyl-L-methionine
preferred_name_lc: precorrin-3a + s-adenosyl-l-homocysteine + h(+) => precorrin-2 + s-adenosyl-l-methionine
label: precorrin-3A + S-adenosyl-L-homocysteine + H(+) => precorrin-2 + S-adenosyl-L-methionine
label_lc: precorrin-3a + s-adenosyl-l-homocysteine + h(+) => precorrin-2 + s-adenosyl-l-methionine