Using O=C(CCC1CCCCC1)NC1N=C(c2ccccc2)c2ccccc2NC1=S, NCCO to produce O=C(CCC1CCCCC1)NC1N=C(c2ccccc2)c2ccccc2NC1=NCCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.