Using C1=COCCC1, COC(=O)c1cc(-c2ccc(O)cc2)nc2[nH]nc(C3CC3)c12 to produce COC(=O)c1cc(-c2ccc(O)cc2)nc2c1c(C1CC1)nn2C1CCCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.