Task: Answer the multiple-choice question.
Query: Which compound exhibits a 7.776\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. O=C1CSC2N1CCNC21CCCCC1
b. COCCNC(=O)c1cc(S(=O)(=O)N(C)c2ccccc2OC)ccc1C
c. O=C(N/N=C/c1ccncc1)c1ccc(COc2cccc3cccnc23)cc1
d. Cn1c(N)c(C(=O)Nc2ccccc2)c(=O)[nH]c1=O
e. COC(=O)c1sc(=S)n(-c2ccc(Cl)cc2)c1C
Answer: a. O=C1CSC2N1CCNC21CCCCC1
{#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#}
O=C1CSC2N1CCNC21CCCCC1
O=C1CSC2N1CCNC21CCCCC1
spiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazine-8,1'-cyclohexane]-3-one