Using COC(=O)c1cc2c(Cc3cccc(C)c3)n[nH]c2cc1O to produce Cc1cccc(Cc2n[nH]c3cc(O)c(C(=O)O)cc23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.