Task: Answer the multiple choice question.
Query: Which drug has a 0.544\% 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 other words.
Options:
(a) Cc1c(Cl)cccc1NC(=O)CN1CCC(C(O)(c2ccccc2)c2ccccc2)CC1
(b) COc1ccc(Cn2cnc3sccc3c2=O)cc1
Answer: b. COc1ccc(Cn2cnc3sccc3c2=O)cc1
{#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(Cn2cnc3sccc3c2=O)cc1
COc1ccc(Cn2cnc3sccc3c2=O)cc1
3-[(4-methoxyphenyl)methyl]thieno[2,3-d]pyrimidin-4-one