Problem statement: Answer the MCQ question.
Query: Which drug has a 3.771\% 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] COc1ccccc1N1C(=O)CCC1(C#N)c1ccccc1
[b] CNC(=O)COc1coc(CN2CCN(Cc3ccccc3)CC2)cc1=O
[c] OCC[C@@H]1C[C@@H](O)[C@H](O)[C@@]2(CCCCO2)O1
[d] CCCCc1c(O)nc2n(c1=O)CCS2
Answer: d. CCCCc1c(O)nc2n(c1=O)CCS2
{#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#}
CCCCc1c(O)nc2n(c1=O)CCS2
CCCCc1c(O)nc2n(c1=O)CCS2
6-butyl-7-hydroxy-2,3-dihydro-[1,3]thiazolo[3,2-a]pyrimidin-5-one