Task: Answer the MCQ question.
Query: Which compound has a 3.263\% 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 additional words.
Options:
(a) CCn1c(=O)cc(SCC(=O)N(C)Cc2ccccc2)c2ccccc21
(b) CC(=O)Cn1cnc2sc(-c3ccccc3)cc2c1=O
Answer: b. CC(=O)Cn1cnc2sc(-c3ccccc3)cc2c1=O
{#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#}
CC(=O)Cn1cnc2sc(-c3ccccc3)cc2c1=O
CC(=O)Cn1cnc2sc(-c3ccccc3)cc2c1=O
3-(2-oxopropyl)-6-phenylthieno[2,3-d]pyrimidin-4-one