Using Cc1c(CC=O)ccc2c1COC2=O, CC1=C(N2CCC3(CCNCC3)C2=O)COC1=O to produce CC1=C(N2CCC3(CCN(CCc4ccc5c(c4C)COC5=O)CC3)C2=O)COC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.