Task: Answer the MCQ question.
Question: Which compound exhibits a -4.046\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a COc1cccc2cc(C(=O)Nc3ccccc3C)/c(=N/O)oc12
b CSc1ccc(/C=N/n2c(Cc3ccc(Br)cc3)n[nH]c2=S)cc1
c COc1cc(-c2nnc3sc(-c4ccco4)nn23)cc(OC)c1OC
d Cc1ccc(NC(=O)C(=O)NCC2OCCc3ccccc32)cc1
Answer: a. COc1cccc2cc(C(=O)Nc3ccccc3C)/c(=N/O)oc12
{#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#}
COc1cccc2cc(C(=O)Nc3ccccc3C)/c(=N/O)oc12
COc1cccc2cc(C(=O)Nc3ccccc3C)/c(=N/O)oc12
(2Z)-2-hydroxyimino-8-methoxy-N-(2-methylphenyl)chromene-3-carboxamide