Task: Answer the MCQ question.
Query: Which drug has a 2.119\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: Cc1noc(N)c1C(=O)Nc1ccc(F)cc1
b: CCN=c1scc(-c2ccccc2)n1/N=C/c1ccccn1
c: O=C(O)C1CCN(C(=O)c2ccco2)CC1
d: COc1ccccc1N1CCN(C(=O)c2cccc(NC3=NC4CS(=O)(=O)CC4S3)c2)CC1
Answer: b. CCN=c1scc(-c2ccccc2)n1/N=C/c1ccccn1
{#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#}
CCN=c1scc(-c2ccccc2)n1/N=C/c1ccccn1
CCN=c1scc(-c2ccccc2)n1/N=C/c1ccccn1
(E)-N-ethyl-4-phenyl-3-[(E)-pyridin-2-ylmethylideneamino]-1,3-thiazol-2-imine