Task: Answer the MCQ question.
Question: Which drug has a 8.176\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CCCCC(=O)NC(=S)Nc1c(C)cc(Br)cc1C
(b) O=C(CSc1nc(C2CC2)nc2ccccc12)N1c2ccccc2Sc2ccccc21
Answer: b. O=C(CSc1nc(C2CC2)nc2ccccc12)N1c2ccccc2Sc2ccccc21
{#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#}
O=C(CSc1nc(C2CC2)nc2ccccc12)N1c2ccccc2Sc2ccccc21
O=C(CSc1nc(C2CC2)nc2ccccc12)N1c2ccccc2Sc2ccccc21
2-(2-cyclopropylquinazolin-4-yl)sulfanyl-1-phenothiazin-10-ylethanone