Task: Answer the MCQ question.
Query: Which drug has a 19.726\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(Nc1cccc(Cl)c1)C1CCCN(c2cnccn2)C1
b: Cc1cccc(C(=O)NC(=S)NCc2cccnc2)c1
c: Cc1occc1C(=O)NNC(=S)NCC(C)C
Answer: a. O=C(Nc1cccc(Cl)c1)C1CCCN(c2cnccn2)C1
{#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(Nc1cccc(Cl)c1)C1CCCN(c2cnccn2)C1
O=C(Nc1cccc(Cl)c1)C1CCCN(c2cnccn2)C1
N-(3-chlorophenyl)-1-pyrazin-2-ylpiperidine-3-carboxamide