Problem statement: Answer the MCQ question.
Query: Which drug exhibits a 1.901\% 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) Cc1n[nH]c(=S)n1/N=C/c1ccccc1
(b) CCN=C1NN=C(c2c[nH]c3ccccc23)CS1
(c) CCN(CC(=O)NC(=O)NC1CCCCC1)Cc1ccccc1
(d) Cc1csc(OCc2ccc(C#N)cc2)n1
Answer: b. CCN=C1NN=C(c2c[nH]c3ccccc23)CS1
{#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=C1NN=C(c2c[nH]c3ccccc23)CS1
CCN=C1NN=C(c2c[nH]c3ccccc23)CS1
N-ethyl-5-(1H-indol-3-yl)-3,6-dihydro-1,3,4-thiadiazin-2-imine