Using C1COCCN1, COc1cc(Cl)nc2c1ncn2Cc1cccc2ccccc12 to produce O=c1cc(N2CCOCC2)[nH]c2c1ncn2Cc1cccc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.