Problem statement: Answer the MCQ question.
Question: Which drug exhibits a 0.034\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(-c2csc3ncn(-c4ccccc4OC)c(=O)c23)cc1OC
b. Cc1sc2nc[nH]c(=S)c2c1-c1ccccc1
Answer: a. COc1ccc(-c2csc3ncn(-c4ccccc4OC)c(=O)c23)cc1OC
{#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#}
COc1ccc(-c2csc3ncn(-c4ccccc4OC)c(=O)c23)cc1OC
COc1ccc(-c2csc3ncn(-c4ccccc4OC)c(=O)c23)cc1OC
5-(3,4-dimethoxyphenyl)-3-(2-methoxyphenyl)thieno[2,3-d]pyrimidin-4-one