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 COc1ccc([C@@H]2Sc3ccccc3N(CCN(C)C)C(=O)[C@@H]2OC(C)=O)cc1
b O=C1CCC(c2ccccc2)(C2CCN(C/C=C/c3ccccc3)CC2)C(=O)N1
c CC(C)n1cc2c3c(cccc31)C1C[C@@H](C(=O)NC3CCCCC3)CN(C)C1C2
d NCCCN1c2ccccc2CCc2ccccc21
e CCNC1(c2ccccc2)CCCCC1
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}