Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 12.778\% 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) Cl.O=C(CN1CCCCCC1)N1c2ccccc2C=Cc2ccccc21
(b) CC(=O)Nc1ccc(S(=O)(=O)N2CCC(c3nc4c(nnn4Cc4ccccc4Cl)c(=O)[nH]3)CC2)cc1
(c) Cc1cc2c(=O)oc(-c3ccc(Br)cc3)nc2s1
(d) CCOC(=O)c1ccc(N2C(=O)CC(N3CCN(C(=O)c4ccco4)CC3)C2=O)cc1
(e) CCOC(=O)c1c(C)[nH]c(C2=NNC(=Nc3ccc(OCC)cc3)SC2)c1C
Answer: c. Cc1cc2c(=O)oc(-c3ccc(Br)cc3)nc2s1
{#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#}
Cc1cc2c(=O)oc(-c3ccc(Br)cc3)nc2s1
Cc1cc2c(=O)oc(-c3ccc(Br)cc3)nc2s1
2-(4-bromophenyl)-6-methylthieno[2,3-d][1,3]oxazin-4-one