Problem statement: Answer the multiple choice question.
Query: Which drug exhibits a -46.727\% 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 other words.
Options:
(a) Cn1c(N2CCCC2)nc2c1c(=O)n(Cc1ccc(Cl)cc1)c(=O)n2C
(b) CC(C)(C)[C@]1(O)CCN2C[C@H]3c4ccccc4CCc4cccc(c43)[C@@H]2C1.Cl
(c) COc1ccc(S(=O)(=O)N2CCC(C(=O)OCC(=O)c3ccccc3)CC2)cc1[N+](=O)[O-]
(d) CCOC(=O)C1CCCN(C(=O)c2ccc(C)cc2O)C1
Answer: b. CC(C)(C)[C@]1(O)CCN2C[C@H]3c4ccccc4CCc4cccc(c43)[C@@H]2C1.Cl
{#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#}
(1S,6S,8S)-6-tert-butyl-3-azapentacyclo[11.8.1.03,8.09,22.016,21]docosa-9,11,13(22),16,18,20-hexaen-6-ol;hydrochloride