Using Cc1c(C(=O)OC(C)C)sc(C(=O)OC(C)C)c1O, CCCCOC(=O)CCCCCN=C=O to produce CCCCOC(=O)CCCCCNC(=O)Oc1c(C(=O)OC(C)C)sc(C(=O)OC(C)C)c1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.