Task: Answer the MCQ question.
Query: Which drug exhibits a 2.771\% 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, d, or e without using any other words.
Options:
a. CCN(c1ccc(OC)cc1)c1ncnc2nc[nH]c12
b. CC(NC(=O)CN1C(=O)NC2(CCCCCC2)C1=O)c1ccccc1Cl
c. CCCCn1c(-c2csc3c2CCCC3)n[nH]c1=S
d. COc1ccc2nc(/N=C/c3cccc(OC)c3O)sc2c1
e. NC(=O)c1cc(-c2ccccc2)sc1NC(=O)Cc1ccc(S(=O)(=O)N2CCOCC2)s1
Answer: a. CCN(c1ccc(OC)cc1)c1ncnc2nc[nH]c12
{#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(c1ccc(OC)cc1)c1ncnc2nc[nH]c12
CCN(c1ccc(OC)cc1)c1ncnc2nc[nH]c12
N-ethyl-N-(4-methoxyphenyl)-7H-purin-6-amine