Using CN(CC[C@H]1CC[C@H](CC#N)CC1)C(=O)OC(C)(C)C, O=C=O to produce CN(CC[C@H]1CC[C@H](CC=O)CC1)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.