Problem statement: Answer the multiple-choice question.
Question: Which compound exhibits a 4.178\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] Cc1ccc(S(=O)(=O)NCCC(=O)Nc2nnc(C)s2)cc1
[b] COc1cccc(/C=C2\N=C(SC)SC2=O)c1OC
Answer: b. COc1cccc(/C=C2\N=C(SC)SC2=O)c1OC
{#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-[(2,3-dimethoxyphenyl)methylidene]-2-methylsulfanyl-1,3-thiazol-5-one