Using C1CCNC1, CC(C)(C)OC(=O)N1CC[C@H](C(=O)O)C1 to produce CC(C)(C)OC(=O)N1CC[C@H](C(=O)N2CCCC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.