Using O=CCc1ccc2c(c1)COC2=O, N#Cc1ccc2c(c1)CC(N1CCNCC1=O)CC2 to produce N#Cc1ccc2c(c1)CC(N1CCN(CCc3ccc4c(c3)COC4=O)CC1=O)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.