Task: Answer the multiple-choice question.
Query: Which compound exhibits a -2.139\% 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, or c without using any additional words.
Options:
(a) COc1ccc(CCNC(=O)Cn2cccc2C(=O)c2ccccc2C)cc1OC
(b) c1ccc(CCCNc2ncnc3nc[nH]c23)cc1
(c) Cc1sc2ncnc(N3CCC(C(=O)NNC(=O)COc4ccccc4F)CC3)c2c1C
Answer: b. c1ccc(CCCNc2ncnc3nc[nH]c23)cc1
{#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#}
c1ccc(CCCNc2ncnc3nc[nH]c23)cc1
c1ccc(CCCNc2ncnc3nc[nH]c23)cc1
N-(3-phenylpropyl)-7H-purin-6-amine