Problem statement: Answer the multiple choice question.
Query: Which compound has a -8.811\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 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(Nc1ccccc1Cl)N1CCN(c2ccccn2)CC1
b c1ccc(OCc2nn3c(Cn4nnc5ccccc54)nnc3s2)cc1
c CCOC(=O)COc1ccc2c(c1)c(C(C)=O)c(C)n2Cc1ccccc1
d NC(=O)CC(NC(=O)Cc1cccc2ccccc12)c1ccc(NCCN2CCCCC2)c([N+](=O)[O-])c1
Answer: a. O=C(Nc1ccccc1Cl)N1CCN(c2ccccn2)CC1
{#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(Nc1ccccc1Cl)N1CCN(c2ccccn2)CC1
O=C(Nc1ccccc1Cl)N1CCN(c2ccccn2)CC1
N-(2-chlorophenyl)-4-pyridin-2-ylpiperazine-1-carboxamide