Using CC(C)(C)OC(=O)N1CC[C@@H](N)C1, CCOC1(O[Si](C)(C)C)CC1 to produce CC(C)(C)OC(=O)N1CC[C@@H](NC2CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.