Task: Answer the MCQ question.
Question: Which drug exhibits a 16.398\% 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 other words.
Options:
a: COc1ccc(C2=Nn3c(nnc3-c3ccccc3)SC2)cc1OC
b: COc1ccc(-c2nn(-c3ccccc3)cc2/C=C(\C#N)C(N)=O)cc1[N+](=O)[O-]
c: COc1ccc(OC)c(NC(=O)c2cnc3n(c2=O)CCS3)c1
d: CCOC(=O)c1c(NC(C)=O)sc2c(O)c(Br)ccc12
Answer: a. COc1ccc(C2=Nn3c(nnc3-c3ccccc3)SC2)cc1OC
{#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#}
6-(3,4-dimethoxyphenyl)-3-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine