Using CN(C)CCCC1c2ccccc2CCc2cc(OCCCC(=O)O)ccc21, O=C1CCC(=O)N1O to produce CN(C)CCCC1c2ccccc2CCc2cc(OCCCC(=O)ON3C(=O)CCC3=O)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.