increase QTc-prolonging
prompt:molecule-molecule interaction [SEP] smiles:CCCCC1=C(C(=O)C2=CC(I)=C(OCCN(CC)CC)C(I)=C2)C2=C(O1)C=CC=C2.OP(O)(=O)OCN1C(=O)NC(C1=O)(C1=CC=CC=C1)C1=CC=CC=C1
wspaced:increase QTc-prolonging