Using CCC=O, CC1(c2nc3c(C(N)=O)cccc3[nH]2)CCNC1 to produce CCCN1CCC(C)(c2nc3c(C(N)=O)cccc3[nH]2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.