Task: Answer the MCQ question.
Query: Which compound exhibits a 1.057\% 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=C1C2CCCN2C(c2cccnc2)N1c1cccc(Cl)c1
b) COc1ccc(Cn2c(SCc3ccc(C)cc3)nc3cc(OC)c(OC)cc3c2=N)cc1Cl
Answer: a. O=C1C2CCCN2C(c2cccnc2)N1c1cccc(Cl)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=C1C2CCCN2C(c2cccnc2)N1c1cccc(Cl)c1
O=C1C2CCCN2C(c2cccnc2)N1c1cccc(Cl)c1
2-(3-chlorophenyl)-3-pyridin-3-yl-5,6,7,7a-tetrahydro-3H-pyrrolo[1,2-c]imidazol-1-one