Task: Answer the multiple-choice question.
Question: Which drug exhibits a 11.904\% hERG inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a CCOC(=O)c1ccc(N2CSC3=C(C#N)C(c4ccc(OC)cc4OC)CC(=O)N3C2)cc1
b CCCOc1ccc(CCCN=C(N)N)cc1Cl.O=S(=O)(O)O
c CC(C)C(NC(=O)c1ccccc1)C(=O)NC1=NCCS1
d O=C(c1ccco1)N1c2ccccc2Sc2ccccc21
Answer: a. CCOC(=O)c1ccc(N2CSC3=C(C#N)C(c4ccc(OC)cc4OC)CC(=O)N3C2)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#}
ethyl 4-[9-cyano-8-(2,4-dimethoxyphenyl)-6-oxo-2,4,7,8-tetrahydropyrido[2,1-b][1,3,5]thiadiazin-3-yl]benzoate