Task: Answer the MCQ question.
Query: Which compound has a 18.949\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: c1ccc(-c2noc(-c3ccccc3-c3ccccc3)n2)cc1
b: N#CC1=C(N)Oc2n[nH]c(-c3ccccc3)c2C1c1ccncc1
Answer: b. N#CC1=C(N)Oc2n[nH]c(-c3ccccc3)c2C1c1ccncc1
{#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#}
N#CC1=C(N)Oc2n[nH]c(-c3ccccc3)c2C1c1ccncc1
N#CC1=C(N)Oc2n[nH]c(-c3ccccc3)c2C1c1ccncc1
6-amino-3-phenyl-4-pyridin-4-yl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile