Task: Answer the MCQ question.
Question: Which compound exhibits a 2.263\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a) COc1ccc(C(=O)NCc2cc(C)nc3ccccc23)cc1OC
b) O=Cc1c(N2CCN(c3ccccc3)CC2)nc2ccccn2c1=O
c) O=C1c2c(O)cc(O)cc2O[C@H](c2ccc(O)c(O)c2)[C@@H]1O
d) Brc1ccc(CNc2ccc3ncccc3c2)cc1
e) Cc1ccc(NC(=O)Cn2nnc(-c3ccccc3-n3cnnn3)n2)c(C)c1
Answer: b. O=Cc1c(N2CCN(c3ccccc3)CC2)nc2ccccn2c1=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#}
O=Cc1c(N2CCN(c3ccccc3)CC2)nc2ccccn2c1=O
O=Cc1c(N2CCN(c3ccccc3)CC2)nc2ccccn2c1=O
4-oxo-2-(4-phenylpiperazin-1-yl)pyrido[1,2-a]pyrimidine-3-carbaldehyde