label: 3,20-dimethyl-1,2,21,22-tetradehydro-2,3,20,21-tetrahydrobotryococcene + 2 S-adenosyl-L-homocysteine + 2 H(+) => C30 botryococcene + 2 S-adenosyl-L-methionine
label_lc: 3,20-dimethyl-1,2,21,22-tetradehydro-2,3,20,21-tetrahydrobotryococcene + 2 s-adenosyl-l-homocysteine + 2 h(+) => c30 botryococcene + 2 s-adenosyl-l-methionine