Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a 6.174\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a CC1CCN(C(=O)CCCC(=O)O)CC1
b O=c1[nH]c(CN2CCN(c3ncccn3)CC2)nc2c(Br)cc(Br)cc12
c CCc1cc(=O)oc2cc(OCC(=O)NCCCn3ccnc3)ccc12
Answer: b. O=c1[nH]c(CN2CCN(c3ncccn3)CC2)nc2c(Br)cc(Br)cc12
{#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=c1[nH]c(CN2CCN(c3ncccn3)CC2)nc2c(Br)cc(Br)cc12
O=c1[nH]c(CN2CCN(c3ncccn3)CC2)nc2c(Br)cc(Br)cc12
6,8-dibromo-2-[(4-pyrimidin-2-ylpiperazin-1-yl)methyl]-3H-quinazolin-4-one