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, or d without using any additional words.
Options:
(a) COc1cc(C(=O)N2CCCCCCC2)cc(OC)c1OC
(b) Cn1c(=O)[nH]c2ncn(C)c2c1=O
(c) Cc1nnc2n1-c1sc(Br)cc1C(c1ccccc1Cl)=NC2
(d) CN(C)CCCn1c2c(c3ccccc31)CCCCCC2
Answer: a, b, c, d
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}