Problem statement: Answer the multiple-choice question.
Query: Which drug exhibits a -0.661\% 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 additional words.
Options:
a: Cc1ccc(OCC(=O)Nc2ccc(S(=O)(=O)N3CCOCC3)cc2)c(Br)c1
b: CCOC(=O)CNc1ccc(OC(F)(F)F)cc1
c: O=c1c2[nH]c3ccccc3c2ncn1Cc1ccncc1
d: O=C(Nc1cccc2ccccc12)N1N=CCC1c1ccccc1
Answer: c. O=c1c2[nH]c3ccccc3c2ncn1Cc1ccncc1
{#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=c1c2[nH]c3ccccc3c2ncn1Cc1ccncc1
O=c1c2[nH]c3ccccc3c2ncn1Cc1ccncc1
3-(pyridin-4-ylmethyl)-5H-pyrimido[5,4-b]indol-4-one