label: (-)-phomoidride B + methanol + S-adenosyl-L-homocysteine + H(+) => phomoidride A + S-adenosyl-L-methionine
label_lc: (-)-phomoidride b + methanol + s-adenosyl-l-homocysteine + h(+) => phomoidride a + s-adenosyl-l-methionine