Task: Answer the MCQ question.
Query: Which compound exhibits a 19.855\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a COc1cc(NC(=O)c2cc(C)no2)cc(OC)c1OC
b CCCc1ccc(C(=O)NNc2cc(Cl)ccc2Cl)cc1
c CN(Cc1ccccc1)S(=O)(=O)c1nnc(NC(=O)c2ccccc2)s1
d COc1ccc(NC(=O)N2CCN(C(=O)c3ccco3)CC2)c(OC)c1
Answer: a. COc1cc(NC(=O)c2cc(C)no2)cc(OC)c1OC
{#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#}
COc1cc(NC(=O)c2cc(C)no2)cc(OC)c1OC
COc1cc(NC(=O)c2cc(C)no2)cc(OC)c1OC
3-methyl-N-(3,4,5-trimethoxyphenyl)-1,2-oxazole-5-carboxamide