label: 20-methyl-21,22-didehydro-20,21-dihydrobotryococcene + S-adenosyl-L-homocysteine + H(+) => C30 botryococcene + S-adenosyl-L-methionine
label_lc: 20-methyl-21,22-didehydro-20,21-dihydrobotryococcene + s-adenosyl-l-homocysteine + h(+) => c30 botryococcene + s-adenosyl-l-methionine