Using CCCCCCCCCCC(C(=O)O)P(=O)(OC(C)C)OC(C)C, N to produce CCCCCCCCCCC(C(N)=O)P(=O)(OC(C)C)OC(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.