Task: Answer the multiple-choice question.
Query: Which drug exhibits a 6.640\% 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 additional words.
Options:
a.) O=C(c1cc(C(=O)NCc2ccccc2)c(=O)n(Cc2ccccc2)c1)c1cc(Br)ccc1O
b.) CN1C(=O)CSc2ccc(NC(=O)N3CCc4ccccc43)cc21
c.) COc1cc(SC)ccc1C(=O)Nc1c(Cl)cncc1Cl
d.) Cc1nnc(SCCn2c(N3CCCC(C)C3)nc3c2c(=O)[nH]c(=O)n3C)s1
e.) CCCc1ncc(C(O)c2cccc(OC)c2)n1C
Answer: b. CN1C(=O)CSc2ccc(NC(=O)N3CCc4ccccc43)cc21
{#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#}
CN1C(=O)CSc2ccc(NC(=O)N3CCc4ccccc43)cc21
CN1C(=O)CSc2ccc(NC(=O)N3CCc4ccccc43)cc21
N-(4-methyl-3-oxo-1,4-benzothiazin-6-yl)-2,3-dihydroindole-1-carboxamide