Task: Answer the multiple choice question.
Query: Which compound exhibits a -0.394\% 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(/C=C/c1cccs1)N1CCN(c2ccc(O)cc2)CC1
[b] COc1ccc(NC(=O)C2c3cc(OC)c(OC)cc3C(=O)N(C)C2c2cccnc2)cc1OC
Answer: a. O=C(/C=C/c1cccs1)N1CCN(c2ccc(O)cc2)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(/C=C/c1cccs1)N1CCN(c2ccc(O)cc2)CC1
O=C(/C=C/c1cccs1)N1CCN(c2ccc(O)cc2)CC1
(E)-1-[4-(4-hydroxyphenyl)piperazin-1-yl]-3-thiophen-2-ylprop-2-en-1-one