Using CCCNC(=O)ON=C1CN(c2ccccc2F)c2ccccc2N(COC)C1=O to produce COCN1C(=O)C(N)CN(c2ccccc2F)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.