Using Cc1cn2c(c1C(=O)OC(C)C)SCC2CC(=O)O, C1COCCN1 to produce Cc1cn2c(c1C(=O)OC(C)C)SCC2CC(=O)N1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.