Task: Answer the MCQ question.
Question: Which drug exhibits a 2.661\% 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 other words.
Options:
a) CCCC(=O)Nc1nnc(-c2ccco2)s1
b) COc1cccc(C2C(C(=O)c3cccs3)=C(O)C(=O)N2c2cc(C)on2)c1
c) O=C(CCn1c(=O)sc2ccccc21)NCc1ccc2c(c1)OCO2
d) CSc1ncccc1C(=O)OCC(=O)NC1CCCCC1
Answer: a. CCCC(=O)Nc1nnc(-c2ccco2)s1
{#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#}
CCCC(=O)Nc1nnc(-c2ccco2)s1
CCCC(=O)Nc1nnc(-c2ccco2)s1
N-[5-(furan-2-yl)-1,3,4-thiadiazol-2-yl]butanamide