Task: Answer the MCQ question.
Query: Which compound exhibits a 15.769\% 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 or b without using any other words.
Options:
(a) Cl.O=C(O)CN1C2=NCCCN2c2ccccc21
(b) CC1CC(C)CN(CCCNC(=O)C2CCCN(c3nnc(N4CCCC4=O)s3)C2)C1
Answer: a. Cl.O=C(O)CN1C2=NCCCN2c2ccccc21
{#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#}
Cl.O=C(O)CN1C2=NCCCN2c2ccccc21
Cl.O=C(O)CN1C2=NCCCN2c2ccccc21
2-(3,4-dihydro-2H-pyrimido[1,2-a]benzimidazol-10-yl)acetic acid;hydrochloride