Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier to reach the brain?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a Cc1nc2n(n1)C(N1CCN(C)CC1)=Nc1ccccc1C2
b CCC(=O)N(c1ccccc1)C1(COC)CCN(CCc2cccs2)CC1
c O=C1CN=C(c2ccccn2)c2cc(Br)ccc2N1
d CCCCCC(N)C(O)(c1ccccc1)c1ccccc1
e CCC1(CC)C(=O)NCC(C)C1=O
Answer: a, 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}