preferred_name: L-serine + 7 malonyl-CoA + acetyl-CoA + 2 S-adenosyl-L-methionine + ATP + 8 NADPH + 11 H(+) = (5S)-3-[(2E,6R,8E,10E,12E)-2,6-dimethyltetradeca-2,8,10,12-tetraenoyl]-5-(hydroxymethyl)pyrrolidine-2,4-dione + AMP + 2 S-adenosyl-L-homocysteine + 7 CO2 + diphosphate + 8 NADP(+) + 8 CoA + 6 H2O