Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. CN1C2CCC1CC(OC(=O)C(CO)c1ccccc1)C2
b. CNCCOC(c1ccccc1)c1ccccc1C
c. CN(C)c1cnccn1
d. CC[C@@H](O)C(C[C@@H](C)N(C)C)(c1ccccc1)c1ccccc1
e. O=C1CN(C(=O)CN2CC(c3ccc(Cl)cc3)CC2=O)CCN1
Answer: b, c, d, e
Task: Please answer the multiple choice question.
Question: Which molecules are {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%penetrate_BBB%}
Answer: {%multiple_choice_result}