Using Clc1cnccn1, Oc1ccc(CCNc2ncnc3nccnc23)cc1 to produce c1cnc(Oc2ccc(CCNc3ncnc4nccnc34)cc2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.