Task: Answer the MCQ question.
Query: Which compound has a 12.643\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
(a) COc1ccc(C(=O)Cc2cc3cccc(OC)c3oc2=O)cc1
(b) Br.Cc1cc(NS(=O)(=O)c2ccc(Nc3nc(-c4sc(NC(=O)c5ccccc5)nc4C)cs3)cc2)no1
(c) COc1ccccc1N1CCN(C(=O)c2sc3ncnc(N4CCN(c5ccccn5)CC4)c3c2C)CC1
(d) CCOC(=O)c1sc2nc[nH]c(=O)c2c1C
(e) CCCCC(CC)CNC(=O)/C=C/c1ccc(F)cc1
Answer: d. CCOC(=O)c1sc2nc[nH]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)c1sc2nc[nH]c(=O)c2c1C
CCOC(=O)c1sc2nc[nH]c(=O)c2c1C
ethyl 5-methyl-4-oxo-3H-thieno[2,3-d]pyrimidine-6-carboxylate