Task: Answer the multiple choice question.
Query: Which drug exhibits a -4.800\% human ether-à-go-go related gene (hERG) inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Cc1cc(=O)n2cc(-c3ccccc3)nc2[nH]1
(b) CCOc1cc(CNc2ccc3c(c2)CCC3)ccc1O
Answer: a. Cc1cc(=O)n2cc(-c3ccccc3)nc2[nH]1
{#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#}
Cc1cc(=O)n2cc(-c3ccccc3)nc2[nH]1
Cc1cc(=O)n2cc(-c3ccccc3)nc2[nH]1
7-methyl-2-phenyl-8H-imidazo[1,2-a]pyrimidin-5-one