Task: Answer the multiple-choice question.
Query: Which drug has a -1.915\% 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) S=c1[nH]nc(-c2ccccc2)o1
(b) COc1cc(/C=C2\C(=O)ON=C2c2ccccc2)cc(Cl)c1O
Answer: b. COc1cc(/C=C2\C(=O)ON=C2c2ccccc2)cc(Cl)c1O
{#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#}
(4Z)-4-[(3-chloro-4-hydroxy-5-methoxyphenyl)methylidene]-3-phenyl-1,2-oxazol-5-one