Task: Answer the multiple-choice question.
Question: Which compound exhibits a 19.224\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Cc1ccc2c(CC(=O)N3CCN(S(=O)(=O)c4ccc5c(c4)OCCO5)CC3)coc2c1
b. CCOC(=O)c1c(NC(=S)NC(=O)/C=C/c2cccs2)sc(C)c1C
Answer: a. Cc1ccc2c(CC(=O)N3CCN(S(=O)(=O)c4ccc5c(c4)OCCO5)CC3)coc2c1
{#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#}
1-[4-(2,3-dihydro-1,4-benzodioxin-6-ylsulfonyl)piperazin-1-yl]-2-(6-methyl-1-benzofuran-3-yl)ethanone