Using COc1ccc(C23Cn4nc(OC(=O)c5conc5C)cc4C(=O)N2CCN3C(=O)c2conc2C)cc1 to produce COc1ccc(C23Cn4[nH]c(=O)cc4C(=O)N2CCN3C(=O)c2conc2C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.