Problem statement: Answer the multiple choice question.
Question: Which compound has a 1.877\% 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. COC1(c2cc(-c3ccccc3)nc(N)n2)CCCCC1
b. CCc1ccc(N2CC(C(=O)NCC(C)(C)N3CCOCC3)CC2=O)cc1
Answer: a. COC1(c2cc(-c3ccccc3)nc(N)n2)CCCCC1
{#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#}
COC1(c2cc(-c3ccccc3)nc(N)n2)CCCCC1
COC1(c2cc(-c3ccccc3)nc(N)n2)CCCCC1
4-(1-methoxycyclohexyl)-6-phenylpyrimidin-2-amine