label: 3-hydroxyhispidin + O2 = 4-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-1,7-dihydroxy-2,3,5-trioxabicyclo[2.2.2]oct-7-en-6-one
label_lc: 3-hydroxyhispidin + o2 = 4-[(e)-2-(3,4-dihydroxyphenyl)ethenyl]-1,7-dihydroxy-2,3,5-trioxabicyclo[2.2.2]oct-7-en-6-one