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 other words.
Options:
a Nc1nc(NC2CC2)c2ncn([C@H]3C=C[C@@H](CO)C3)c2n1
b COC(=O)[C@H]1[C@H]2C[C@@H]3c4[nH]c5cc(OC)ccc5c4CCN3C[C@H]2C[C@@H](OC(=O)c2cc(OC)c(OC)c(OC)c2)[C@@H]1OC
c CN1CC[C@]23c4c5ccc(O)c4O[C@H]2C(O)C=C[C@H]3[C@H]1C5
d Cc1cc(NS(=O)(=O)c2ccc(N)cc2)no1
e CCC1(c2ccccc2)C(=O)NCNC1=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}