Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 21.246\% 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: CCOC(=O)C1(CCCc2ccccc2)CCN(C(=O)Cn2nc(C)nc2C)CC1
b: O=C(Oc1ccc(C(=S)N2CCOCC2)cc1)c1ccccc1[N+](=O)[O-]
c: S=C(NCc1ccncc1)Nc1cccc(Cl)c1
d: Cc1ccc(Nc2nc(N/N=C/c3c[nH]c4ccccc34)nc(N3CCOCC3)n2)cc1
Answer: b. O=C(Oc1ccc(C(=S)N2CCOCC2)cc1)c1ccccc1[N+](=O)[O-]
{#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(Oc1ccc(C(=S)N2CCOCC2)cc1)c1ccccc1[N+](=O)[O-]
O=C(Oc1ccc(C(=S)N2CCOCC2)cc1)c1ccccc1[N+](=O)[O-]
[4-(morpholine-4-carbothioyl)phenyl] 2-nitrobenzoate