Task: Answer the multiple-choice question.
Query: Which compound exhibits a -1.886\% 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] Cc1ccc(N(CC(=O)N/N=C/c2cc(C)n(-c3ccccc3C)c2C)S(C)(=O)=O)cc1
[b] COc1c(C(=O)NNC(=O)c2ccccc2Cl)csc1Br
[c] CCOC(=O)c1nnn(-c2nonc2N)c1CN(CC)CC
[d] Nc1c(C(=O)CSc2nnc(-c3ccccc3)o2)c(=O)[nH]c(=O)n1C1CC1
Answer: b. COc1c(C(=O)NNC(=O)c2ccccc2Cl)csc1Br
{#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#}
COc1c(C(=O)NNC(=O)c2ccccc2Cl)csc1Br
COc1c(C(=O)NNC(=O)c2ccccc2Cl)csc1Br
5-bromo-N'-(2-chlorobenzoyl)-4-methoxythiophene-3-carbohydrazide