ROI 4 not clear which one

The structures stored in this compound can be found at Compound structures >>

no description
C1=CC2=C(C=C1)C(=O)C(=CC2=O)S/C(=C(/C#N)\O)/C#N.C1=CC2=C(C=C1)C(=O)C(=C(C2=O)O)S/C(=C/C#N)/C#N
NNUCYJIPMYCCHO-KUYDALQZSA-N