Using COc1cccc2c1CCC(C(=O)N1CCC(c3ccccc3)CC1)CC2=O to produce O=C1CC(C(=O)N2CCC(c3ccccc3)CC2)CCc2c(O)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.