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.) Clc1ccccc1C(c1ccccc1)(c1ccccc1)n1ccnc1
b.) c1cnc(N2CCN(Cc3ccc4c(c3)OCO4)CC2)nc1
c.) CCC(O)C(CC(C)N(C)C)(c1ccccc1)c1ccccc1
d.) CN1CC[C@]23c4c5ccc(O)c4O[C@H]2C(O)C=C[C@H]3[C@H]1C5
Answer: 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}