Using COC(CCCCCCCCN1CCC(OC(=O)Nc2ccccc2-c2ccccc2)CC1)OC to produce O=CCCCCCCCCN1CCC(OC(=O)Nc2ccccc2-c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.