Using COc1c(O)ccc2[nH]ncc12, O=C1c2ccccc2C(=O)N1C1CCC(O)CC1 to produce COc1c(OC2CCC(N3C(=O)c4ccccc4C3=O)CC2)ccc2[nH]ncc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.