Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 18.773\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) CCN(C(=O)C1CCCN(c2ncnc3c2nc2n3CCCCC2)C1)c1cccc(Cl)c1
b) O=C(CNc1ccccc1OC(F)F)N1CCc2ccccc21
Answer: b. O=C(CNc1ccccc1OC(F)F)N1CCc2ccccc21
{#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#}
O=C(CNc1ccccc1OC(F)F)N1CCc2ccccc21
O=C(CNc1ccccc1OC(F)F)N1CCc2ccccc21
2-[2-(difluoromethoxy)anilino]-1-(2,3-dihydroindol-1-yl)ethanone