Task: Answer the multiple choice question.
Question: Which drug exhibits a -12.904\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a.) COc1ccc(CNC(=O)CN(C2CCCCC2)S(C)(=O)=O)cc1
b.) COc1ccccc1CN1C[C@@H]2C[C@@H](C3=Cc4cc(Cl)ccc4OC3)N3CCC[C@@]23C1=O
c.) CCN(C(=O)COC(=O)c1cc(S(=O)(=O)N(C)C)ccc1Cl)C1CCS(=O)(=O)C1
d.) Cc1c([N+](=O)[O-])c([N+](=O)[O-])nn1CC(=O)N1CCCCC1
Answer: b. COc1ccccc1CN1C[C@@H]2C[C@@H](C3=Cc4cc(Cl)ccc4OC3)N3CCC[C@@]23C1=O
{#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#}
COc1ccccc1CN1C[C@@H]2C[C@@H](C3=Cc4cc(Cl)ccc4OC3)N3CCC[C@@]23C1=O
COc1ccccc1CN1C[C@@H]2C[C@@H](C3=Cc4cc(Cl)ccc4OC3)N3CCC[C@@]23C1=O
(1S,5S,7S)-7-(6-chloro-2H-chromen-3-yl)-3-[(2-methoxyphenyl)methyl]-3,8-diazatricyclo[6.3.0.01,5]undecan-2-one