Task: Answer the multiple choice question.
Question: Which drug exhibits a 1.539\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a.) COc1ccc(CCNC(=O)CN2C(=O)COc3ccc(S(=O)(=O)N4CCOCC4)cc32)c(OC)c1
b.) Cc1cccc2nc(-c3cccnc3)c(Nc3ccccc3)n12
c.) O=C1CCCN1CCC1CCCCN1Cc1nc(COc2ccccc2)no1
d.) COc1ccc(CCNC(N)=S)cc1OC
Answer: b. Cc1cccc2nc(-c3cccnc3)c(Nc3ccccc3)n12
{#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#}
Cc1cccc2nc(-c3cccnc3)c(Nc3ccccc3)n12
Cc1cccc2nc(-c3cccnc3)c(Nc3ccccc3)n12
5-methyl-N-phenyl-2-pyridin-3-ylimidazo[1,2-a]pyridin-3-amine