Task: Answer the MCQ question.
Question: Which drug exhibits a -2.550\% 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) N/C(=N\c1nc2c(c(=O)[nH]1)CCC2)Nc1cccc2ccccc12
(b) CCOc1ccc(CCNC(=O)CS(=O)Cc2nc(-c3ccc(C)cc3)oc2C)cc1
Answer: a. N/C(=N\c1nc2c(c(=O)[nH]1)CCC2)Nc1cccc2ccccc12
{#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#}
N/C(=N\c1nc2c(c(=O)[nH]1)CCC2)Nc1cccc2ccccc12
N/C(=N\c1nc2c(c(=O)[nH]1)CCC2)Nc1cccc2ccccc12
1-naphthalen-1-yl-2-(4-oxo-3,5,6,7-tetrahydrocyclopenta[d]pyrimidin-2-yl)guanidine