Task: Answer the multiple choice question.
Question: Which drug has a 18.462% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a COc1cc(CCC(=O)N2CCN(c3ccc([N+](=O)[O-])cc3)CC2)cc(OC)c1OC
b COC(=O)[C@@H]1Cc2c([nH]c3ccccc23)C2CCC(=O)N21
Answer: b. COC(=O)[C@@H]1Cc2c([nH]c3ccccc23)C2CCC(=O)N21
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COC(=O)[C@@H]1Cc2c([nH]c3ccccc23)C2CCC(=O)N21
COC(=O)[C@@H]1Cc2c([nH]c3ccccc23)C2CCC(=O)N21
methyl (5S)-3-oxo-1,2,5,6,11,11b-hexahydroindolizino[8,7-b]indole-5-carboxylate