Using CC(C)(C)OC(=O)N1CCN(C(=S)OCc2ccc(OCC(=O)c3ccccc3)cc2)CC1 to produce O=C(COc1ccc(COC(=S)N2CCNCC2)cc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.