Using COC(Cn1cc2ccc(NC(=O)Nc3ccc(Oc4ccccc4)cc3)cc2n1)OC to produce O=CCn1cc2ccc(NC(=O)Nc3ccc(Oc4ccccc4)cc3)cc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.