Task: Answer the multiple-choice question.
Query: Which compound has a 7.645\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: O=C(C1CCCO1)N1CCN(C(=S)Nc2ccc(Cl)cc2Cl)CC1
b: CCN1CCc2nc(N)sc2C1
c: COC(=O)CN1C(=O)COc2ccc(S(=O)(=O)N3CCOCC3)cc21
d: O=C1NCCN/C1=C\C(=O)c1ccc(Br)cc1
Answer: b. CCN1CCc2nc(N)sc2C1
{#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#}
CCN1CCc2nc(N)sc2C1
CCN1CCc2nc(N)sc2C1
5-ethyl-6,7-dihydro-4H-[1,3]thiazolo[5,4-c]pyridin-2-amine