Task: Answer the MCQ question.
Query: Which compound exhibits a 3.813\% 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 additional words.
Options:
a: S=C(Nc1cccc2ccccc12)NN1CCOCC1
b: O=C(NC1CCCCC1)c1cccc(S(=O)(=O)N2CCOCC2)c1
Answer: a. S=C(Nc1cccc2ccccc12)NN1CCOCC1
{#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#}
S=C(Nc1cccc2ccccc12)NN1CCOCC1
S=C(Nc1cccc2ccccc12)NN1CCOCC1
1-naphthalen-1-yl-3-morpholin-4-ylthiourea