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) O=C(O)/C=C\C(=O)O.c1csc(Cc2ccccc2OCC2CNCCO2)c1
b) CN1C2CCC1CC(OC(=O)C(CO)c1ccccc1)C2
c) C[C@H]1c2ccccc2[C@@H](CCCN(C)C)c2cc(C(F)(F)F)ccc21
d) CN1CCN(c2ccccc2Cc2ccccc2)CC1
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}