Task: Answer the multiple-choice question.
Query: Which compound exhibits a 19.038\% 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(NCc1ccncc1)c1ccc(Oc2ccccc2)cc1
b. COc1cccc(C(=O)N2C(C(=O)O)CSC2c2ccccc2Cl)c1
Answer: a. O=C(NCc1ccncc1)c1ccc(Oc2ccccc2)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(NCc1ccncc1)c1ccc(Oc2ccccc2)cc1
O=C(NCc1ccncc1)c1ccc(Oc2ccccc2)cc1
4-phenoxy-N-(pyridin-4-ylmethyl)benzamide