Using CCOC(OCC)c1cccn2c(-c3c(C)nc4c(C(CC)CC)cc(C)nn34)c(C)nc12 to produce CCC(CC)c1cc(C)nn2c(-c3c(C)nc4c(C=O)cccn34)c(C)nc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.