Problem statement: Answer the multiple-choice question.
Question: Which drug has a 2.623\% 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 or b without using any other words.
Options:
a: Cc1cc2c(c(=O)n1Cc1ccccn1)C(c1cccs1)C(C#N)=C(N)O2
b: CCCCSc1cc(C)nc(N)n1
Answer: b. CCCCSc1cc(C)nc(N)n1
{#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#}
CCCCSc1cc(C)nc(N)n1
CCCCSc1cc(C)nc(N)n1
4-butylsulfanyl-6-methylpyrimidin-2-amine