Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 12.643\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(N/N=C/c1c(O)ccc2ccccc12)c1cccnc1
b. CCc1ccc(-c2cc3c(=O)n(CC(=O)NCCCN4CCC(Cc5ccccc5)CC4)nc(C)n3n2)cc1
Answer: a. O=C(N/N=C/c1c(O)ccc2ccccc12)c1cccnc1
{#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(N/N=C/c1c(O)ccc2ccccc12)c1cccnc1
O=C(N/N=C/c1c(O)ccc2ccccc12)c1cccnc1
N-[(E)-(2-hydroxynaphthalen-1-yl)methylideneamino]pyridine-3-carboxamide