Task: Answer the MCQ question.
Question: Which drug exhibits a -22.022\% 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) COc1ccc(NC(=O)C2CCN(c3nc(C)cc(C)n3)CC2)cc1
b) O=C(COc1ccccc1)Nc1cccc2nsnc12
c) CC(C)CC(=O)N1CCN(c2ccc([N+](=O)[O-])c(NCc3ccccc3)c2)CC1
d) Cc1ccc(C(=O)N[C@@H](C)CN2C3=NC[C@H](Cc4ccccc4)N3C[C@H]2Cc2ccc(O)cc2)cc1Br
Answer: b. O=C(COc1ccccc1)Nc1cccc2nsnc12
{#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(COc1ccccc1)Nc1cccc2nsnc12
O=C(COc1ccccc1)Nc1cccc2nsnc12
N-(2,1,3-benzothiadiazol-4-yl)-2-phenoxyacetamide