Task: Answer the multiple choice question.
Question: Which compound has a 1.043\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(CSc1ncnc2ccccc12)NCCCO
b. O=[N+]([O-])c1cccnc1NCCc1c[nH]c2ccccc12
Answer: a. O=C(CSc1ncnc2ccccc12)NCCCO
{#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#}
O=C(CSc1ncnc2ccccc12)NCCCO
O=C(CSc1ncnc2ccccc12)NCCCO
N-(3-hydroxypropyl)-2-quinazolin-4-ylsulfanylacetamide