Using COP(=O)(OC)C(NC(=O)OC(C)(C)C)C(=O)OC(C)(C)C, CC(C)(C)c1ocnc1C=O to produce CC(C)(C)OC(=O)NC(=Cc1ncoc1C(C)(C)C)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.