Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 1.674\% 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.) CC1C(C#N)=C(N)OC2=C1C(=O)CCC2
b.) O=[N+]([O-])c1ccc(Oc2cccc3cccnc23)c([N+](=O)[O-])c1
Answer: a. CC1C(C#N)=C(N)OC2=C1C(=O)CCC2
{#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#}
CC1C(C#N)=C(N)OC2=C1C(=O)CCC2
CC1C(C#N)=C(N)OC2=C1C(=O)CCC2
2-amino-4-methyl-5-oxo-4,6,7,8-tetrahydrochromene-3-carbonitrile