Using COc1cc2cnnc(N3CCC(CC(C)OC(C)=O)CC3)c2cc1OC to produce COc1cc2cnnc(N3CCC(CC(C)O)CC3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.