Task: Answer the multiple-choice question.
Question: Which drug exhibits a 18.496% hERG inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: COc1ccc(Cn2c(O)c(C=Nc3ccc(OC)cc3)c3ccccc3c2=O)cc1
b: Clc1ccc2c(NCc3cccs3)ncnc2c1
Answer: b. Clc1ccc2c(NCc3cccs3)ncnc2c1
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
Clc1ccc2c(NCc3cccs3)ncnc2c1
Clc1ccc2c(NCc3cccs3)ncnc2c1
7-chloro-N-(thiophen-2-ylmethyl)quinazolin-4-amine