Using CC(C)(C)OC(=O)CCC(CCC(=O)OC(C)(C)C)(CCC(=O)OC(C)(C)C)NC(=O)CCC(=O)O, CCSC(=O)OCI to produce CCSC(=O)OCOC(=O)CCC(=O)NC(CCC(=O)OC(C)(C)C)(CCC(=O)OC(C)(C)C)CCC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.