Task: Answer the multiple-choice question.
Query: Which drug exhibits a -18.431% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=C1CSC(c2ccccc2F)N1c1ccccc1F
b) O=C(CN1C2=NCCCN2c2ccccc21)c1cccs1
c) COc1ccc(CC(=O)NNC(=O)COc2ccc(C)cc2)cc1S(=O)(=O)N1CCOCC1
Answer: b. O=C(CN1C2=NCCCN2c2ccccc21)c1cccs1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=C(CN1C2=NCCCN2c2ccccc21)c1cccs1
O=C(CN1C2=NCCCN2c2ccccc21)c1cccs1
2-(3,4-dihydro-2H-pyrimido[1,2-a]benzimidazol-10-yl)-1-thiophen-2-ylethanone