Using COC(=O)c1c(C)cccc1COCCCOCc1ccc2ccccc2n1 to produce Cc1cccc(COCCCOCc2ccc3ccccc3n2)c1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.