Task: Answer the MCQ question.
Question: Which compound exhibits a 2.246\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] CCN(CC)C(=O)CN1CCC(c2nc3cc(C)c(C)cc3[nH]2)CC1
[b] CCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCN(C(=S)NC(=O)c4ccccc4C)CC3)cc21
[c] O=C1CC(NS(=O)(=O)c2cccs2)CN1c1cccc(F)c1
[d] Cc1ccc(S(=O)(=O)CCC(=O)OCC(=O)N(CCC#N)c2ccc(F)cc2)cc1
Answer: b. CCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCN(C(=S)NC(=O)c4ccccc4C)CC3)cc21
{#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#}
CCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCN(C(=S)NC(=O)c4ccccc4C)CC3)cc21
CCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCN(C(=S)NC(=O)c4ccccc4C)CC3)cc21
1-ethyl-6-fluoro-7-[4-[(2-methylbenzoyl)carbamothioyl]piperazin-1-yl]-4-oxoquinoline-3-carboxylic acid