preferred_name: (3S)-3-amino-3-(3-chloro-4-hydroxyphenyl)propanoyl-[SgcC2 peptidyl-carrier protein] + FADH2 + O2 => (3S)-3-amino-3-(3-chloro-4,5-dihydroxyphenyl)propanoyl-[SgcC2 peptidyl-carrier protein] + FAD + H2O + H(+)