Using CC1(C)OB(c2cnc(N)nc2)OC1(C)C, CC1(C)COc2c(nc(Cl)nc2N2CCOCC2)O1 to produce CC1(C)COc2c(nc(-c3cnc(N)nc3)nc2N2CCOCC2)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.