Task: Answer the multiple choice question.
Query: Which compound exhibits a -18.358\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] Cc1cccc(N2C(=O)C(O)=C(C(=O)c3cccs3)C2c2ccc(Cl)cc2)n1
[b] CCN1CCN(c2nc(-c3cccnc3)nc3ccccc23)CC1.Cl
Answer: b. CCN1CCN(c2nc(-c3cccnc3)nc3ccccc23)CC1.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#}
CCN1CCN(c2nc(-c3cccnc3)nc3ccccc23)CC1.Cl
CCN1CCN(c2nc(-c3cccnc3)nc3ccccc23)CC1.Cl
4-(4-ethylpiperazin-1-yl)-2-pyridin-3-ylquinazoline;hydrochloride