Task: Answer the multiple-choice question.
Question: Which compound exhibits a 1.132\% 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, c, d, or e without using any other words.
Options:
a O=C1CCCc2c1cnc1ncnn21
b COc1ccc(S(=O)(=O)Nc2ccc(C(N)=O)cc2)cc1C(=O)N1CCCCCC1
c CCOCc1nnc(NC(=O)c2cc(OC)cc(OC)c2)s1
d O=S(=O)(Nc1ncccn1)c1ccccc1
e CC(=O)N1C(c2ccccc2)CC(=O)OC1c1ccc2c(c1)OCO2
Answer: a. O=C1CCCc2c1cnc1ncnn21
{#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=C1CCCc2c1cnc1ncnn21
O=C1CCCc2c1cnc1ncnn21
8,9-dihydro-7H-[1,2,4]triazolo[1,5-a]quinazolin-6-one