Using C1COCCN1, Cc1nc(/C=C\O)c2cc(C3CCCCC3)sc2n1 to produce Cc1nc(CCN2CCOCC2)c2cc(C3CCCCC3)sc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.