Task: Answer the multiple-choice question.
Query: Which drug exhibits a 20.370\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] COC(=O)CSc1nc(N)c(NC(=O)c2ccc(OC)c(OC)c2)c(=O)[nH]1
[b] CC(C)Oc1ccc(C(CCNCc2ccc(O)cc2)c2ccccc2)cc1
Answer: a. COC(=O)CSc1nc(N)c(NC(=O)c2ccc(OC)c(OC)c2)c(=O)[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#}
COC(=O)CSc1nc(N)c(NC(=O)c2ccc(OC)c(OC)c2)c(=O)[nH]1
COC(=O)CSc1nc(N)c(NC(=O)c2ccc(OC)c(OC)c2)c(=O)[nH]1
methyl 2-[[4-amino-5-[(3,4-dimethoxybenzoyl)amino]-6-oxo-1H-pyrimidin-2-yl]sulfanyl]acetate