You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is anti body.
user
O=C(O)C1(O)CC(O)C(OC2OC(CO)C(O)C(OC3OC(CO)C(OC4OC(CO)C(O)C(O)C4O)C(O)C3O)C2O)C(C(O)CO)O1
assistant