Using [NH4+], CC(=O)OC(C(=O)c1ccc2c(c1)OCO2)c1cccc(C)n1 to produce Cc1cccc(-c2oc(C)nc2-c2ccc3c(c2)OCO3)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.