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) O=C1NCCN1C1CCN(CCC2COc3ccccc3O2)CC1
b) COC(=O)[C@H]1[C@H]2C[C@@H]3c4[nH]c5ccc(Cl)cc5c4CCN3C[C@H]2C[C@@H](OC(=O)c2cc(OC)c(OC)c(OC)c2)[C@@H]1OC
c) CCC(=O)C(c1ccccc1)(c1ccccc1)C(C)CN(C)C
d) O=C1CCCN1CCCCN1CCN(c2cc(C(F)(F)F)ccn2)CC1
e) CO[C@@]1(NC(=O)Cc2cccs2)C(=O)N2C(C(=O)O)=C(COC(N)=O)CS[C@@H]21
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}