Using O=C(O)C1CCOC1, Cc1c(CN2CCN(c3nccnc3-c3ccc(CN)cc3)CC2)cnn1C to produce Cc1c(CN2CCN(c3nccnc3-c3ccc(CNC(=O)C4CCOC4)cc3)CC2)cnn1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.