Task: Answer the multiple-choice question.
Question: Which drug exhibits a -4.323\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a O=C(NCCc1ccccn1)c1ccc2nc(Cc3ccccc3F)oc2c1
b COc1ccc(NC2CCCN(C(=O)c3cccs3)C2)cc1
Answer: a. O=C(NCCc1ccccn1)c1ccc2nc(Cc3ccccc3F)oc2c1
{#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(NCCc1ccccn1)c1ccc2nc(Cc3ccccc3F)oc2c1
O=C(NCCc1ccccn1)c1ccc2nc(Cc3ccccc3F)oc2c1
2-[(2-fluorophenyl)methyl]-N-(2-pyridin-2-ylethyl)-1,3-benzoxazole-6-carboxamide