Task: Answer the MCQ question.
Question: Which compound exhibits a 12.760\% 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, or c without using any other words.
Options:
a) CCC(CC)C(=O)Nc1nnc(SCC(=O)N2CCN(c3ccccc3OC)CC2)s1
b) COc1ccc(C(=O)Nc2ccc3oc(-c4cccc(F)c4)nc3c2)cc1OC
c) CCN1CCSc2ccc(C(=O)NCc3cccc(F)c3)cc21
Answer: a. CCC(CC)C(=O)Nc1nnc(SCC(=O)N2CCN(c3ccccc3OC)CC2)s1
{#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#}
2-ethyl-N-[5-[2-[4-(2-methoxyphenyl)piperazin-1-yl]-2-oxoethyl]sulfanyl-1,3,4-thiadiazol-2-yl]butanamide