Problem statement: Answer the multiple choice question.
Query: Which compound has a -9.134\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: Cc1ccc(OCC(=O)OC(C)CN(C)Cc2ccccc2)cc1.Cl
b: CCCCCCNCCn1cnc2c(N)ncnc21
c: CC(=O)N1CCN(C(=O)C2(NC(=O)Nc3ccc(C)cc3)CCCCC2)CC1
d: O=C(Nc1c2c(nn1-c1cccc(Cl)c1)CS(=O)(=O)C2)c1cccs1
Answer: b. CCCCCCNCCn1cnc2c(N)ncnc21
{#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#}
CCCCCCNCCn1cnc2c(N)ncnc21
CCCCCCNCCn1cnc2c(N)ncnc21
9-[2-(hexylamino)ethyl]purin-6-amine