Using Cc1c(C)c2c(c(C)c1O)C(c1ccc(C(C)C)cc1)C1(CCNCC1)O2, C=O to produce Cc1c(C)c2c(c(C)c1O)C(c1ccc(C(C)C)cc1)C1(CCN(C)CC1)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.