Using N#Cc1ccc(CC=O)cc1, O=C1OCc2cc(CCN3CCNCC3)ccc21 to produce N#Cc1ccc(CCN2CCN(CCc3ccc4c(c3)COC4=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.