Using C1CCNC1, COc1cc(-c2cc3cc(C=O)ccc3n2C(=O)OC(C)(C)C)c2c(c1O)CNC2=O to produce COc1cc(-c2cc3cc(CN4CCCC4)ccc3n2C(=O)OC(C)(C)C)c2c(c1O)CNC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.