Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 18.328\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(Nn1c(-c2ccccc2)nc2ccccc2c1=O)c1cccs1
(b) CC(NC(=O)c1cccs1)C(c1cccs1)N1CCOCC1
Answer: a. O=C(Nn1c(-c2ccccc2)nc2ccccc2c1=O)c1cccs1
{#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(Nn1c(-c2ccccc2)nc2ccccc2c1=O)c1cccs1
O=C(Nn1c(-c2ccccc2)nc2ccccc2c1=O)c1cccs1
N-(4-oxo-2-phenylquinazolin-3-yl)thiophene-2-carboxamide