Using O=Cc1ccccc1, c1cc2[nH]ncc2cc1NC1CC2CCC(C1)N2 to produce c1ccc(CN2C3CCC2CC(Nc2ccc4[nH]ncc4c2)C3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.