Task: Answer the multiple-choice question.
Query: Which compound has a 16.771\% 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 additional words.
Options:
a) CCOC(=O)N1CCN(C(=O)/C(=C/c2ccc(Cl)cc2)NC(=O)c2ccccc2)CC1
b) OCC[C@@H]1C[C@@H](O)[C@H](O)[C@@]2(Cc3ccccc3CCO2)O1
c) COc1ccc(CCNC(=O)CSc2nc3ccsc3c(=O)n2CC2CCC(C(=O)O)CC2)cc1OC
d) Cc1ccccc1OCC(=O)NNC(=O)CCN1C(=O)c2ccccc2C1=O
Answer: b. OCC[C@@H]1C[C@@H](O)[C@H](O)[C@@]2(Cc3ccccc3CCO2)O1
{#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#}
OCC[C@@H]1C[C@@H](O)[C@H](O)[C@@]2(Cc3ccccc3CCO2)O1
OCC[C@@H]1C[C@@H](O)[C@H](O)[C@@]2(Cc3ccccc3CCO2)O1
(3'S,4R,4'R,6'R)-6'-(2-hydroxyethyl)spiro[2,5-dihydro-1H-3-benzoxepine-4,2'-oxane]-3',4'-diol