Task: Answer the multiple-choice question.
Query: Which compound has a 19.496\% 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, c, d, or e without using any other words.
Options:
a O=C1CCCc2c1cnc1ncnn21
b CCOCc1nnc(NC(=O)C2c3ccccc3Oc3ccccc32)s1
c Cc1ccc(/C=C2\OC(=O)c3ccccc32)cc1
d COc1cc(/C=N/n2nnnc2Nc2ccccc2)cc(OC)c1OC
e CC(C)(C)n1ncc2c(=O)n(CC(=O)NC3CCCCC3)cnc21
Answer: b. CCOCc1nnc(NC(=O)C2c3ccccc3Oc3ccccc32)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#}
CCOCc1nnc(NC(=O)C2c3ccccc3Oc3ccccc32)s1
CCOCc1nnc(NC(=O)C2c3ccccc3Oc3ccccc32)s1
N-[5-(ethoxymethyl)-1,3,4-thiadiazol-2-yl]-9H-xanthene-9-carboxamide