Task: Answer the multiple choice question.
Question: Which drug exhibits a -28.822\% 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 additional words.
Options:
a: CCc1cc2c(N3CCN(c4nnc(CC)s4)CC3)ncnc2s1.Cl
b: Cl.O=C(O)c1ccc(CNCc2ccc(Cl)cc2Cl)cc1
Answer: a. CCc1cc2c(N3CCN(c4nnc(CC)s4)CC3)ncnc2s1.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#}
CCc1cc2c(N3CCN(c4nnc(CC)s4)CC3)ncnc2s1.Cl
CCc1cc2c(N3CCN(c4nnc(CC)s4)CC3)ncnc2s1.Cl
6-ethyl-4-[4-(5-ethyl-1,3,4-thiadiazol-2-yl)piperazin-1-yl]thieno[2,3-d]pyrimidine;hydrochloride