Using CC1CN(C(=O)OCc2ccccc2)C12CCCN(c1ncnc3[nH]ccc13)C2 to produce CC1CNC12CCCN(c1ncnc3[nH]ccc13)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.