Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a 4.714\% 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 other words.
Options:
a.) O=C1OC(Nc2ccc(Br)cc2F)c2ccccc21
b.) COc1ccc(-c2nc(C#N)c(NCC3CCCO3)o2)cc1
Answer: b. COc1ccc(-c2nc(C#N)c(NCC3CCCO3)o2)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#}
2-(4-methoxyphenyl)-5-(oxolan-2-ylmethylamino)-1,3-oxazole-4-carbonitrile