Task: Answer the multiple-choice question.
Question: Which drug exhibits a -2.839\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a COc1ccccc1CNC(=O)c1csc2c1CCCC2
b COc1cc(/C=N/Nc2nc3ccccc3[nH]2)cc(OC)c1O
c O=c1c2c(-c3cccs3)csc2ncn1-c1ccc(Br)cc1
Answer: c. O=c1c2c(-c3cccs3)csc2ncn1-c1ccc(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#}
O=c1c2c(-c3cccs3)csc2ncn1-c1ccc(Br)cc1
O=c1c2c(-c3cccs3)csc2ncn1-c1ccc(Br)cc1
3-(4-bromophenyl)-5-thiophen-2-ylthieno[2,3-d]pyrimidin-4-one