Using COC(=O)c1ccc2c(C3CCCCC3)c3n(c2c1)CCOc1c(-c2cccnc2)cccc1-3 to produce O=C(O)c1ccc2c(C3CCCCC3)c3n(c2c1)CCOc1c(-c2cccnc2)cccc1-3, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.