Using COC(=O)Cc1coc2cc(OCc3ccc(C)nc3C)ccc12 to produce Cc1ccc(COc2ccc3c(CC(=O)O)coc3c2)c(C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.