Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a -1.128\% 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) O=C(O)c1cc(-c2ccccc2)nn1CC1CC(c2cccc([N+](=O)[O-])c2)=NO1
(b) COC(=O)[C@H](C)NC(=O)NC1CCCc2ccccc21
(c) CCCCOc1ccc(S(=O)(=O)NNC(=O)c2cc3ccccc3o2)cc1
(d) COc1cccc(C(=O)NCC(=O)N/N=C(C)\C=C\c2ccccc2)c1
Answer: b. COC(=O)[C@H](C)NC(=O)NC1CCCc2ccccc21
{#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#}
COC(=O)[C@H](C)NC(=O)NC1CCCc2ccccc21
COC(=O)[C@H](C)NC(=O)NC1CCCc2ccccc21
methyl (2S)-2-(1,2,3,4-tetrahydronaphthalen-1-ylcarbamoylamino)propanoate