Task: Answer the MCQ question.
Question: Which compound has a -1.893\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(CSc1nnnn1-c1ccc(Cl)cc1)N1CCc2ccccc2C1
b: COC(=O)C1(C)NC(c2ccc(O)cc2)C2C(=O)N(c3ccccc3)C(=O)C21
Answer: a. O=C(CSc1nnnn1-c1ccc(Cl)cc1)N1CCc2ccccc2C1
{#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(CSc1nnnn1-c1ccc(Cl)cc1)N1CCc2ccccc2C1
O=C(CSc1nnnn1-c1ccc(Cl)cc1)N1CCc2ccccc2C1
2-[1-(4-chlorophenyl)tetrazol-5-yl]sulfanyl-1-(3,4-dihydro-1H-isoquinolin-2-yl)ethanone