Using C1CCNC1, COc1nc(SC)ncc1-c1cc(C)c(Oc2ccnc(-c3cnn(C)c3)c2)cn1 to produce COc1nc(N2CCCC2)ncc1-c1cc(C)c(Oc2ccnc(-c3cnn(C)c3)c2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.