Task: Answer the multiple choice question.
Question: Which drug exhibits a -2.323\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: COC(=O)NNC(=S)Nc1ccc(Br)cc1
b: Oc1c(N=NC(=S)Nc2ccccc2F)c2ccccc2n1Cc1ccc(Cl)cc1
Answer: a. COC(=O)NNC(=S)Nc1ccc(Br)cc1
{#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)NNC(=S)Nc1ccc(Br)cc1
COC(=O)NNC(=S)Nc1ccc(Br)cc1
methylN-[(4-bromophenyl)carbamothioylamino]carbamate