Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 8.566\% human ether-à-go-go related gene (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) Fc1ccc2[nH]c3c(Cl)ncnc3c2c1
(b) COc1cc2c(cc1OC)C(c1cccnc1)CC(=O)N2
(c) CCN1C(=O)CS/C1=N\n1cnnc1
Answer: a. Fc1ccc2[nH]c3c(Cl)ncnc3c2c1
{#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#}
Fc1ccc2[nH]c3c(Cl)ncnc3c2c1
Fc1ccc2[nH]c3c(Cl)ncnc3c2c1
4-chloro-8-fluoro-5H-pyrimido[5,4-b]indole