Using COc1cccc(C=O)c1, CC(C)(C)OC(=O)N[C@@H]1CCNC1 to produce COc1cccc(CN2CC[C@@H](NC(=O)OC(C)(C)C)C2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.