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 other words.
Options:
[a] OC[C@@H](O)[C@H]1OC2O[C@H](C(Cl)(Cl)Cl)O[C@@H]2[C@H]1O
[b] COc1cc(C(=O)OCCN2CCN(CCCN3c4ccccc4Sc4ccc(Cl)cc43)CC2)cc(OC)c1OC
[c] OC(c1ccccc1)(c1ccccc1)C1CCCCN1
[d] C[N+]1(C)CCC(OC(=O)C(O)(c2ccccc2)C2CCCC2)C1.[Br-]
[e] O=C(CCCN1CC=C(n2c(=O)[nH]c3ccccc32)CC1)c1ccc(F)cc1
Answer: a, b, c, 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}