Task: Answer the multiple choice question.
Question: Which drug exhibits a 2.151\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: O=C(c1ccc2c3c(cccc13)CC2)C1CCCN(Cc2ncc[nH]2)C1
b: Cc1ccc2cc(CNC(C)(C)C)c(=O)[nH]c2c1
c: CCCCNC(=O)c1ccc(CNS(=O)(=O)c2ccc(Br)cc2)cc1
Answer: a. O=C(c1ccc2c3c(cccc13)CC2)C1CCCN(Cc2ncc[nH]2)C1
{#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(c1ccc2c3c(cccc13)CC2)C1CCCN(Cc2ncc[nH]2)C1
O=C(c1ccc2c3c(cccc13)CC2)C1CCCN(Cc2ncc[nH]2)C1
1,2-dihydroacenaphthylen-5-yl-[1-(1H-imidazol-2-ylmethyl)piperidin-3-yl]methanone