Task: Answer the multiple choice question.
Question: Which drug exhibits a 4.277\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
[a] Cl.O=C(CN1CCN(C2CCCCC2)CC1)Nc1cccc2ccccc12
[b] CCN(CC)c1ccc(C(=O)N/N=C(\C)c2ccc(O)cc2)cc1
[c] O=C(Oc1ccc(-c2cnc3ccccc3n2)cc1)c1ccc(Br)o1
[d] COc1cccc(C(=O)OCC(=O)NCCCc2ccccc2)c1
[e] O=C(CCSCc1ccccc1Cl)NCc1ccco1
Answer: a. Cl.O=C(CN1CCN(C2CCCCC2)CC1)Nc1cccc2ccccc12
{#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#}
Cl.O=C(CN1CCN(C2CCCCC2)CC1)Nc1cccc2ccccc12
Cl.O=C(CN1CCN(C2CCCCC2)CC1)Nc1cccc2ccccc12
2-(4-cyclohexylpiperazin-1-yl)-N-naphthalen-1-ylacetamide;hydrochloride