Task: Answer the multiple choice question.
Query: Which compound exhibits a -0.172\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COC(=O)CCC(=O)OC1(C)C(=O)C2=CN(Cc3ccc(OC)cc3)C(c3ccc(OC)cc3)=CC2=C(Br)C1=O
(b) COC(=O)c1cc2cc(Cl)ccc2nc1SC
Answer: a. COC(=O)CCC(=O)OC1(C)C(=O)C2=CN(Cc3ccc(OC)cc3)C(c3ccc(OC)cc3)=CC2=C(Br)C1=O
{#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#}
COC(=O)CCC(=O)OC1(C)C(=O)C2=CN(Cc3ccc(OC)cc3)C(c3ccc(OC)cc3)=CC2=C(Br)C1=O
COC(=O)CCC(=O)OC1(C)C(=O)C2=CN(Cc3ccc(OC)cc3)C(c3ccc(OC)cc3)=CC2=C(Br)C1=O
4-O-[5-bromo-3-(4-methoxyphenyl)-2-[(4-methoxyphenyl)methyl]-7-methyl-6,8-dioxoisoquinolin-7-yl] 1-O-methyl butanedioate