Using CI, CC(C)(C)OC(=O)N1CCC2(CC1)CN(C(C)(C)C)CC(CO)O2 to produce COCC1CN(C(C)(C)C)CC2(CCN(C(=O)OC(C)(C)C)CC2)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.