Using C=CCC(N)(CCCCB1OC(C)(C)C(C)(C)O1)C(=O)OCC, CC(C)(C)OC(=O)OC(C)(C)C to produce C=CCC(CCCCB1OC(C)(C)C(C)(C)O1)(NC(=O)OC(C)(C)C)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.