Task: Answer the multiple-choice question.
Question: Which drug exhibits a 5.205\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a.) O=C(NC(=S)NCCCN1CCOCC1)c1cccc2ccccc12
b.) CCCCOc1nc(N2CCOCC2)nc(C)c1[N+](=O)[O-]
c.) CC(NS(=O)(=O)c1ccc2c(c1)CC(=O)N2C)c1ccccc1
d.) COc1cc(NC(=O)c2ccccc2Cl)c(OC)cc1NC(=O)CN1CCOCC1
Answer: b. CCCCOc1nc(N2CCOCC2)nc(C)c1[N+](=O)[O-]
{#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#}
CCCCOc1nc(N2CCOCC2)nc(C)c1[N+](=O)[O-]
CCCCOc1nc(N2CCOCC2)nc(C)c1[N+](=O)[O-]
4-(4-butoxy-6-methyl-5-nitropyrimidin-2-yl)morpholine