Task: Answer the multiple choice question.
Query: Which compound exhibits a -1.811\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a. COc1ccc(CC(=O)NNC(=O)COc2ccc3ccccc3c2)cc1
b. COC(=O)C1C(c2ccccc2)C(C(=O)N2CCOCC2)C1c1ccccc1
c. CCOc1ccccc1N1CCN(S(=O)(=O)c2ccc(F)c(F)c2)CC1
d. O=C1CCCc2c1[nH]c1c(Br)cccc21
e. COc1cc2[nH]c3c(N4CCN(c5ccc(Cl)cc5)CC4)ncnc3c2cc1OC
Answer: e. COc1cc2[nH]c3c(N4CCN(c5ccc(Cl)cc5)CC4)ncnc3c2cc1OC
{#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#}
4-[4-(4-chlorophenyl)piperazin-1-yl]-7,8-dimethoxy-5H-pyrimido[5,4-b]indole