Task: Answer the MCQ question.
Question: Which drug exhibits a 2.897\% 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: CCn1nc(C(=O)Nc2cc(Cl)ccc2-n2cncn2)c2ccccc2c1=O
b: N#Cc1c(SCC(=O)Nc2nc3ccc(Br)cc3s2)sc2c(O)cc(=O)[nH]c12
c: COC(=O)C1=C(c2ccccc2)C[C@@H]2CC[C@H]1N2C(=O)NCCS(C)=O
d: CN(C)CCn1c(=O)n(Cc2ccco2)c(=O)c2c3c(sc21)CCCCC3
Answer: a. CCn1nc(C(=O)Nc2cc(Cl)ccc2-n2cncn2)c2ccccc2c1=O
{#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#}
CCn1nc(C(=O)Nc2cc(Cl)ccc2-n2cncn2)c2ccccc2c1=O
CCn1nc(C(=O)Nc2cc(Cl)ccc2-n2cncn2)c2ccccc2c1=O
N-[5-chloro-2-(1,2,4-triazol-1-yl)phenyl]-3-ethyl-4-oxophthalazine-1-carboxamide