preferred_name: (E)-caffeoylpyruvate + hnu + CO2 => 4-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-1,7-dihydroxy-2,3,5-trioxabicyclo[2.2.2]oct-7-en-6-one
preferred_name_lc: (e)-caffeoylpyruvate + hnu + co2 => 4-[(e)-2-(3,4-dihydroxyphenyl)ethenyl]-1,7-dihydroxy-2,3,5-trioxabicyclo[2.2.2]oct-7-en-6-one
label: (E)-caffeoylpyruvate + hnu + CO2 => 4-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-1,7-dihydroxy-2,3,5-trioxabicyclo[2.2.2]oct-7-en-6-one
label_lc: (e)-caffeoylpyruvate + hnu + co2 => 4-[(e)-2-(3,4-dihydroxyphenyl)ethenyl]-1,7-dihydroxy-2,3,5-trioxabicyclo[2.2.2]oct-7-en-6-one