Using COCc1cc(OC)c(-c2cccc3c(N(CC4CC4)C(=O)OC(C)(C)C)c(COC)nn23)c(OC)c1 to produce COCc1cc(OC)c(-c2cccc3c(NCC4CC4)c(COC)nn23)c(OC)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.