Task: Answer the MCQ question.
Question: Which drug exhibits a -16.679\% human ether-à-go-go related gene (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] COc1ccccc1C(=O)Nc1ccnn1C1CCN(Cc2ccccc2OCCO)CC1
[b] O=C(Nc1nnc(-c2cc(Cl)ccc2Cl)o1)c1ccco1
[c] COc1ccc(NC(=O)CN(c2ccc(OC)c(Cl)c2)S(=O)(=O)c2ccccc2)cc1
[d] COCCNC(=S)Nc1ccc(N2CCOCC2)c(S(=O)(=O)Nc2ccccc2OC)c1
[e] Clc1ccc(Oc2nc(Oc3ccc(Cl)cc3)nc(N3CCOCC3)n2)cc1
Answer: b. O=C(Nc1nnc(-c2cc(Cl)ccc2Cl)o1)c1ccco1
{#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=C(Nc1nnc(-c2cc(Cl)ccc2Cl)o1)c1ccco1
O=C(Nc1nnc(-c2cc(Cl)ccc2Cl)o1)c1ccco1
N-[5-(2,5-dichlorophenyl)-1,3,4-oxadiazol-2-yl]furan-2-carboxamide