Task: Answer the MCQ question.
Question: Which compound exhibits a 16.645\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: COc1ccc2nc(NCCCO)[nH]c2c1
b: Cc1ccc2cccc(OCCOCCOc3ccccc3Br)c2n1
c: O=C1Cc2ccccc2C(=O)N1c1cccc(Cl)c1
d: Cc1cccc(N(CC(=O)Nc2cccnc2)S(C)(=O)=O)c1
Answer: c. O=C1Cc2ccccc2C(=O)N1c1cccc(Cl)c1
{#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=C1Cc2ccccc2C(=O)N1c1cccc(Cl)c1
O=C1Cc2ccccc2C(=O)N1c1cccc(Cl)c1
2-(3-chlorophenyl)-4H-isoquinoline-1,3-dione