Task: Answer the multiple-choice question.
Question: Which drug exhibits a 4.723\% human ether-à-go-go related gene (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. COc1cccc(C2C([N+](=O)[O-])=C(N)Oc3c2c(=O)oc2ccccc32)c1
b. CCn1ncc(S(=O)(=O)NCc2ccccc2Cl)c1C
c. CCN(CC)C(=O)c1sc2nc(-c3ccc(OC)cc3)cn2c1C
d. COc1cc(CN(C)Cc2cccc3ccccc23)cc([N+](=O)[O-])c1O
Answer: c. CCN(CC)C(=O)c1sc2nc(-c3ccc(OC)cc3)cn2c1C
{#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(CC)C(=O)c1sc2nc(-c3ccc(OC)cc3)cn2c1C
CCN(CC)C(=O)c1sc2nc(-c3ccc(OC)cc3)cn2c1C
N,N-diethyl-6-(4-methoxyphenyl)-3-methylimidazo[2,1-b][1,3]thiazole-2-carboxamide