Problem statement: Answer the multiple choice question.
Query: Which compound has a 12.643\% 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 or b without using any other words.
Options:
a O=C(N/N=C/C(Br)=C\c1ccccc1)c1ccco1
b C#CCNC(=O)C1=C[C@H](C(C)(C)C)C[C@H](OCc2ccc(CO)cc2)O1
Answer: a. O=C(N/N=C/C(Br)=C\c1ccccc1)c1ccco1
{#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(N/N=C/C(Br)=C\c1ccccc1)c1ccco1
O=C(N/N=C/C(Br)=C\c1ccccc1)c1ccco1
N-[(E)-[(E)-2-bromo-3-phenylprop-2-enylidene]amino]furan-2-carboxamide