label: lovastatin carboxylate + holo-[2-methylbutanoate polyketide synthase] => monacolin J carboxylate + (S)-2-methylbutanoyl-[2-methylbutanoate polyketide synthase]
label_lc: lovastatin carboxylate + holo-[2-methylbutanoate polyketide synthase] => monacolin j carboxylate + (s)-2-methylbutanoyl-[2-methylbutanoate polyketide synthase]