Problem statement: Answer the MCQ question.
Question: Which drug has a 0.162\% 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 O=c1c(O)c(-c2cccs2)oc2ccc(Cl)cc12
b COC(=O)N1C(=O)[C@](c2ccc(OC)cc2)(C(C)C)N1C(=O)OC
Answer: a. O=c1c(O)c(-c2cccs2)oc2ccc(Cl)cc12
{#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#}
O=c1c(O)c(-c2cccs2)oc2ccc(Cl)cc12
O=c1c(O)c(-c2cccs2)oc2ccc(Cl)cc12
6-chloro-3-hydroxy-2-thiophen-2-ylchromen-4-one