Task: Answer the multiple choice question.
Question: Which drug exhibits a -10.184\% 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, or d without using any other words.
Options:
a: COc1cc2c(cc1OC)C1(CCCC1)CNC2c1cccc([N+](=O)[O-])c1
b: CCn1ncc(S(=O)(=O)N2CCN(c3cccc(OC)c3)CC2)c1C
c: CCn1cc(C(=O)OCC(=O)Nc2cccc(C)c2)c(=O)c2ccc(C)nc21
d: Nc1ccc(Br)cc1C(NCC(=O)O)c1ccccc1
Answer: a. COc1cc2c(cc1OC)C1(CCCC1)CNC2c1cccc([N+](=O)[O-])c1
{#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#}
COc1cc2c(cc1OC)C1(CCCC1)CNC2c1cccc([N+](=O)[O-])c1
COc1cc2c(cc1OC)C1(CCCC1)CNC2c1cccc([N+](=O)[O-])c1
6,7-dimethoxy-1-(3-nitrophenyl)spiro[2,3-dihydro-1H-isoquinoline-4,1'-cyclopentane]