Problem statement: Answer the multiple choice question.
Question: Which drug has a 0.749\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C(CN1CCN(CCOCCO)CC1)N1c2ccccc2Sc2ccc(Cl)cc21
[b] CCOCCOC(=O)c1ccc(-n2cnc(C)n2)nc1
Answer: a. O=C(CN1CCN(CCOCCO)CC1)N1c2ccccc2Sc2ccc(Cl)cc21
{#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(CN1CCN(CCOCCO)CC1)N1c2ccccc2Sc2ccc(Cl)cc21
O=C(CN1CCN(CCOCCO)CC1)N1c2ccccc2Sc2ccc(Cl)cc21
1-(2-chlorophenothiazin-10-yl)-2-[4-[2-(2-hydroxyethoxy)ethyl]piperazin-1-yl]ethanone