Task: Answer the MCQ question.
Query: Which drug exhibits a 1.825\% 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] CC(C)CCN1CC(O)=C(c2nc(-c3ccc(Cl)cc3)cs2)C1=N
[b] C=CCn1c(=S)sc2c(=O)[nH]c(C)nc21
Answer: b. C=CCn1c(=S)sc2c(=O)[nH]c(C)nc21
{#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#}
C=CCn1c(=S)sc2c(=O)[nH]c(C)nc21
C=CCn1c(=S)sc2c(=O)[nH]c(C)nc21
5-methyl-3-prop-2-enyl-2-sulfanylidene-6H-[1,3]thiazolo[4,5-d]pyrimidin-7-one