Task: Answer the multiple-choice question.
Question: Which compound exhibits a 6.726\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
[a] C=CCNc1nc(-c2c(C)nc3ncccn23)cs1
[b] Clc1cc(Cl)c2nc(N3CCCCC3)sc2c1
[c] O=C(NCc1ccncc1)C1CCN(S(=O)(=O)c2cc(Cl)ccc2Cl)CC1
[d] Cc1cc([N+](=O)[O-])nn1CCCC(=O)Nc1cc(Cl)ccc1Cl
[e] Cc1ccc(-n2c(SCc3cn4ccsc4n3)nc3ccccc3c2=O)cc1
Answer: a. C=CCNc1nc(-c2c(C)nc3ncccn23)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#}
C=CCNc1nc(-c2c(C)nc3ncccn23)cs1
C=CCNc1nc(-c2c(C)nc3ncccn23)cs1
4-(2-methylimidazo[1,2-a]pyrimidin-3-yl)-N-prop-2-enyl-1,3-thiazol-2-amine