Task: Answer the multiple choice question.
Query: Which compound exhibits a 4.376\% 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: O=C(NCc1cccnc1)C1CCCN(S(=O)(=O)c2cccc3nsnc23)C1
b: CC(C)OCCCNC(=S)Nc1ccc(S(N)(=O)=O)cc1
c: CCOC(=O)c1cc2c(C)n(-c3ccc(C)cc3)c(C)c2ccc1=O
d: CCCC1=C(C(=O)OCC)C(c2ccco2)C(C#N)=C(N)O1
Answer: d. CCCC1=C(C(=O)OCC)C(c2ccco2)C(C#N)=C(N)O1
{#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#}
CCCC1=C(C(=O)OCC)C(c2ccco2)C(C#N)=C(N)O1
CCCC1=C(C(=O)OCC)C(c2ccco2)C(C#N)=C(N)O1
ethyl 6-amino-5-cyano-4-(furan-2-yl)-2-propyl-4H-pyran-3-carboxylate