Task: Answer the multiple-choice question.
Question: Which compound has a 4.168\% 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 or b without using any other words.
Options:
a) CN1CC[C@@]2(C)c3cc(O)ccc3N(C)C2O1
b) COc1ccc(C2=NN(CC(=O)Nc3ccccc3C)C(=O)CC2)cc1
Answer: a. CN1CC[C@@]2(C)c3cc(O)ccc3N(C)C2O1
{#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#}
CN1CC[C@@]2(C)c3cc(O)ccc3N(C)C2O1
CN1CC[C@@]2(C)c3cc(O)ccc3N(C)C2O1
(4aS)-2,4a,9-trimethyl-4,9a-dihydro-3H-oxazino[6,5-b]indol-6-ol