Task: Answer the MCQ question.
Question: Which drug has a 18.203\% 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 COc1ccccc1NC(=O)c1c([N+](=O)[O-])cnn1C
b C[S+](CC[C@H](N)C(=O)O)C[C@H]1O[C@@H](n2cnc3c(N)ncnc32)[C@H](O)[C@@H]1O.[Cl-]
c CCOc1ccccc1NC(=O)COC(=O)c1ccc2ccccc2n1
d O=C(O)CCCN1C(=O)c2ccc(Oc3cccc([N+](=O)[O-])c3)cc2C1=O
e COc1ccc(-c2noc(CCC(=O)NCc3cc(Br)ccc3OC)n2)cc1
Answer: d. O=C(O)CCCN1C(=O)c2ccc(Oc3cccc([N+](=O)[O-])c3)cc2C1=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#}
O=C(O)CCCN1C(=O)c2ccc(Oc3cccc([N+](=O)[O-])c3)cc2C1=O
O=C(O)CCCN1C(=O)c2ccc(Oc3cccc([N+](=O)[O-])c3)cc2C1=O
4-[5-(3-nitrophenoxy)-1,3-dioxoisoindol-2-yl]butanoic acid