Using CC(C)(C)OC(=O)NCC=O, CCn1c(-c2nonc2N)nc2cncc(C(=O)N3CCNCC3)c21 to produce CCn1c(-c2nonc2N)nc2cncc(C(=O)N3CCN(CCNC(=O)OC(C)(C)C)CC3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.