Problem statement: Answer the multiple-choice question.
Query: Which compound exhibits a 23.352\% 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. Cc1ccccc1OCc1nnc(SCC(=O)Nc2ccc3c(c2)oc2ccccc23)n1C
b. S=c1nc(-c2ccc(Br)cc2)oc2c1CCCC2
Answer: b. S=c1nc(-c2ccc(Br)cc2)oc2c1CCCC2
{#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#}
S=c1nc(-c2ccc(Br)cc2)oc2c1CCCC2
S=c1nc(-c2ccc(Br)cc2)oc2c1CCCC2
2-(4-bromophenyl)-5,6,7,8-tetrahydro-1,3-benzoxazine-4-thione