Task: Answer the multiple-choice question.
Query: Which compound exhibits a 1.635\% 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 additional words.
Options:
[a] COc1ccc(CCNc2oc(COc3ccc(Br)cc3)nc2C#N)cc1OC
[b] CCc1cc(=O)oc2cc(C)cc(OCC(=O)NCC3CCC(C(=O)O)CC3)c12
Answer: a. COc1ccc(CCNc2oc(COc3ccc(Br)cc3)nc2C#N)cc1OC
{#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#}
COc1ccc(CCNc2oc(COc3ccc(Br)cc3)nc2C#N)cc1OC
COc1ccc(CCNc2oc(COc3ccc(Br)cc3)nc2C#N)cc1OC
2-[(4-bromophenoxy)methyl]-5-[2-(3,4-dimethoxyphenyl)ethylamino]-1,3-oxazole-4-carbonitrile