Problem statement: Answer the multiple choice question.
Question: Which compound exhibits a 2.460\% 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=C1/C(=C/c2cccnc2)N=C2CCCCCN12
(b) O=C(CSC(=S)N1CCOCC1)Nc1nc(-c2ccccc2)c(-c2ccccc2)o1
Answer: a. O=C1/C(=C/c2cccnc2)N=C2CCCCCN12
{#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=C1/C(=C/c2cccnc2)N=C2CCCCCN12
O=C1/C(=C/c2cccnc2)N=C2CCCCCN12
(2Z)-2-(pyridin-3-ylmethylidene)-6,7,8,9-tetrahydro-5H-imidazo[1,2-a]azepin-3-one