Task: Answer the multiple choice question.
Question: Which drug has a 6.645\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a CCOC(=O)c1ccc(NC(=O)COc2cc3oc(=O)c(CC(C)O)c(C)c3cc2Cl)cc1
b O=C(NC1CCSc2ccccc21)c1ccccc1Br
Answer: b. O=C(NC1CCSc2ccccc21)c1ccccc1Br
{#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(NC1CCSc2ccccc21)c1ccccc1Br
O=C(NC1CCSc2ccccc21)c1ccccc1Br
2-bromo-N-(3,4-dihydro-2H-thiochromen-4-yl)benzamide