Task: Answer the MCQ question.
Question: Which drug exhibits a 4.499\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a O=C(c1cccc(Oc2ccccc2)c1)N1CCN(c2ccccn2)CC1
b O=C(CCc1nnc(C2CCCCC2)o1)N1CCN(C2CCCCC2)CC1
Answer: b. O=C(CCc1nnc(C2CCCCC2)o1)N1CCN(C2CCCCC2)CC1
{#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(CCc1nnc(C2CCCCC2)o1)N1CCN(C2CCCCC2)CC1
O=C(CCc1nnc(C2CCCCC2)o1)N1CCN(C2CCCCC2)CC1
3-(5-cyclohexyl-1,3,4-oxadiazol-2-yl)-1-(4-cyclohexylpiperazin-1-yl)propan-1-one