Task: Answer the multiple-choice question.
Query: Which compound has a 18.841\% 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: CCc1ccc(Nc2ncccc2C#N)cc1
b: O=C(NN=C1CCCCCC1)c1ccc(Br)o1
c: CCOC(=O)c1cn(CC(=O)Nc2cccc(F)c2)nn1
d: CC(C)(C)C(=O)Nc1nnc(SCC(=O)NC2CCCCC2)s1
Answer: b. O=C(NN=C1CCCCCC1)c1ccc(Br)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#}
O=C(NN=C1CCCCCC1)c1ccc(Br)o1
O=C(NN=C1CCCCCC1)c1ccc(Br)o1
5-bromo-N-(cycloheptylideneamino)furan-2-carboxamide