Task: Answer the multiple choice question.
Query: Which drug exhibits a 18.872% human ether-à-go-go related gene (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. CC(=O)NCC1=C(NC(C)=O)C2CC1C(C)(C)C2C
b. O=C(c1ccc(Cl)cc1)C1CCN(C(=O)c2ccccc2)CC1
Answer: a. CC(=O)NCC1=C(NC(C)=O)C2CC1C(C)(C)C2C
{#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#}
CC(=O)NCC1=C(NC(C)=O)C2CC1C(C)(C)C2C
CC(=O)NCC1=C(NC(C)=O)C2CC1C(C)(C)C2C
N-[(3-acetamido-5,6,6-trimethyl-2-bicyclo[2.2.1]hept-2-enyl)methyl]acetamide