Task: Answer the multiple choice question.
Query: Which compound exhibits a -21.251% human ether-à-go-go related gene (hERG) inhibition at 10uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a) S=C(NCc1ccccc1)NCc1ccc(CNC(=S)NCc2ccccc2)cc1
b) O=[N+]([O-])c1cccc(-c2cc3sc4ccccc4[n+]3cc2-c2cccc([N+](=O)[O-])c2)c1.[Br-]
c) CCn1cc(C(=S)N2CCC(C(N)=O)CC2)c2ccccc21
d) CCn1c(SCC(=O)Nc2ccc(NC(=O)c3cccs3)cc2)nnc1-c1cccnc1
Answer: b. O=[N+]([O-])c1cccc(-c2cc3sc4ccccc4[n+]3cc2-c2cccc([N+](=O)[O-])c2)c1.[Br-]
{#Task|Problem statement!}: Answer the {#multiple choice|multiple-choice|MCQ!} question.
{#Question|Query!}: Which {#compound|drug!} {#has|exhibits!} a {herg_central_at_10uM#}{herg_central_at_10uM__units} {herg_central_at_10uM__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_10uM%}
Answer: {%multiple_choice_result}. {SMILES#}
O=[N+]([O-])c1cccc(-c2cc3sc4ccccc4[n+]3cc2-c2cccc([N+](=O)[O-])c2)c1.[Br-]
O=[N+]([O-])c1cccc(-c2cc3sc4ccccc4[n+]3cc2-c2cccc([N+](=O)[O-])c2)c1.[Br-]
2,3-bis(3-nitrophenyl)pyrido[2,1-b][1,3]benzothiazol-10-ium;bromide