Task: Answer the MCQ question.
Question: Which drug exhibits a 20.739\% 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 or b without using any other words.
Options:
[a] CCOC(=O)c1sc2ncn(/N=C/c3ccc(O)c(OC)c3)c(=O)c2c1C
[b] O=C(CCS(=O)(=O)c1cc2c(cc1Cl)NC(=O)CO2)NCc1ccccc1
Answer: a. CCOC(=O)c1sc2ncn(/N=C/c3ccc(O)c(OC)c3)c(=O)c2c1C
{#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#}
CCOC(=O)c1sc2ncn(/N=C/c3ccc(O)c(OC)c3)c(=O)c2c1C
CCOC(=O)c1sc2ncn(/N=C/c3ccc(O)c(OC)c3)c(=O)c2c1C
ethyl 3-[(E)-(4-hydroxy-3-methoxyphenyl)methylideneamino]-5-methyl-4-oxothieno[2,3-d]pyrimidine-6-carboxylate