Task: Answer the multiple choice question.
Question: Which drug has a 5.643% human ether-à-go-go related gene (hERG) inhibition at a concentration of 10uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCCCOc1ccc(C(=O)N2CCN(CC(=O)Nc3ccc(C)cc3)CC2)cc1OC
b. COc1cc2nc(-c3ccc(Br)cc3)oc(=O)c2cc1OC
Answer: b. COc1cc2nc(-c3ccc(Br)cc3)oc(=O)c2cc1OC
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
COc1cc2nc(-c3ccc(Br)cc3)oc(=O)c2cc1OC
COc1cc2nc(-c3ccc(Br)cc3)oc(=O)c2cc1OC
2-(4-bromophenyl)-6,7-dimethoxy-3,1-benzoxazin-4-one