Problem statement: Answer the multiple choice question.
Question: Which compound has a 18.935\% 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 additional words.
Options:
(a) O=C(CNc1ccc(Br)cc1)c1ccc(O)cc1
(b) COCCn1c(SCC(=O)N2CCCC2)nnc1-c1ccco1
Answer: a. O=C(CNc1ccc(Br)cc1)c1ccc(O)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#}
O=C(CNc1ccc(Br)cc1)c1ccc(O)cc1
O=C(CNc1ccc(Br)cc1)c1ccc(O)cc1
2-(4-bromoanilino)-1-(4-hydroxyphenyl)ethanone