Using CCc1nc2c(C)cc(C)nc2n1Cc1ccc(NCC2CCC3(CC2)OCCO3)cc1 to produce CCc1nc2c(C)cc(C)nc2n1Cc1ccc(NCC2CCC(=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.