Task: Answer the MCQ question.
Question: Which drug has a 3.107\% 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. CCCCn1c2c(c(=O)n(C)c1=O)C(c1ccc(OC)cc1)N1CCCCCC1=N2
b. CC1=C(C)CC2C(C1)C(=O)c1ccc(Br)cc1S2(=O)=O
Answer: b. CC1=C(C)CC2C(C1)C(=O)c1ccc(Br)cc1S2(=O)=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#}
CC1=C(C)CC2C(C1)C(=O)c1ccc(Br)cc1S2(=O)=O
CC1=C(C)CC2C(C1)C(=O)c1ccc(Br)cc1S2(=O)=O
6-bromo-2,3-dimethyl-10,10-dioxo-1,4,4a,9a-tetrahydrothioxanthen-9-one