Task: Answer the MCQ question.
Question: Which drug has a 0.521\% 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 other words.
Options:
a) CCCCCCn1c(SCC(=O)c2ccccc2)nc2c1c(=O)[nH]c(=O)n2C
b) COCCn1c(SCC(=O)Nc2cc(C)on2)nnc1-c1ccccc1
c) COc1cc2c(=O)n(Cc3ccccc3)c(=O)n(CC(=O)NCCc3ccccc3)c2cc1OC
d) c1ccc2c(c1)[nH]c1c(N3CCC4(CC3)OCCO4)ncnc12
Answer: a. CCCCCCn1c(SCC(=O)c2ccccc2)nc2c1c(=O)[nH]c(=O)n2C
{#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#}
CCCCCCn1c(SCC(=O)c2ccccc2)nc2c1c(=O)[nH]c(=O)n2C
CCCCCCn1c(SCC(=O)c2ccccc2)nc2c1c(=O)[nH]c(=O)n2C
7-hexyl-3-methyl-8-phenacylsulfanylpurine-2,6-dione