Task: Answer the multiple choice question.
Question: Which compound has a 2.640\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(CCc1ccccc1)Nc1nn[nH]n1
(b) CC1CCN(c2nc(-c3ccccc3)cc(C(F)(F)F)n2)CC1
Answer: b. CC1CCN(c2nc(-c3ccccc3)cc(C(F)(F)F)n2)CC1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_1uM#}{herg_central_at_1uM__units} {herg_central_at_1uM__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_central_at_1uM%}
Answer: {%multiple_choice_result}. {SMILES#}
CC1CCN(c2nc(-c3ccccc3)cc(C(F)(F)F)n2)CC1
CC1CCN(c2nc(-c3ccccc3)cc(C(F)(F)F)n2)CC1
[C][C][C][C][N][Branch2][Ring1][=N][C][=N][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][=C][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][=N][Ring1][S][C][C][Ring2][Ring1][=Branch1]
2-(4-methylpiperidin-1-yl)-4-phenyl-6-(trifluoromethyl)pyrimidine