Using Cc1c(-c2c(CO)n(C)c(=O)c3sc4c(c23)CCCC4)ccc2c1CCCO2 to produce Cc1c(-c2c(C=O)n(C)c(=O)c3sc4c(c23)CCCC4)ccc2c1CCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.