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 CN(C)CCOC(c1ccccc1)c1ccc(Br)cc1
b CC1(C)S[C@@H]2[C@H](NC(=O)C(C(=O)Oc3ccccc3)c3ccccc3)C(=O)N2[C@H]1C(=O)O
c CNCCCC1(C)CN(c2ccccc2)c2ccccc21
d NC(N)=NC(=O)c1nc(Cl)c(N)nc1N
e CN1CCN(C2=Cc3cc(Cl)ccc3/C(=C\C#N)c3ccccc32)CC1
Answer: a, 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}