Task: Answer the MCQ question.
Question: Which compound has a 8.721\% 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 NC(=O)N/N=C/c1ccc(N2CCOCC2)s1
b Cc1ccc(C)c(S(=O)(=O)N2CCN(C(=O)CCNS(=O)(=O)c3ccccc3)CC2)c1
c COc1cccc(NC(=O)CSc2nnc(-c3cc(C)n(-c4ccccc4)c3C)o2)c1
d CCN1CCN(CCn2c(=S)[nH]c3ccccc3c2=O)CC1
Answer: d. CCN1CCN(CCn2c(=S)[nH]c3ccccc3c2=O)CC1
{#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#}
CCN1CCN(CCn2c(=S)[nH]c3ccccc3c2=O)CC1
CCN1CCN(CCn2c(=S)[nH]c3ccccc3c2=O)CC1
3-[2-(4-ethylpiperazin-1-yl)ethyl]-2-sulfanylidene-1H-quinazolin-4-one