Using CCOP(=O)(CCOCCOCCNC(=O)[C@H](C)NC(=O)OC(C)(C)C)OCC to produce CCOP(=O)(CCOCCOCCNC(=O)[C@H](C)N)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.