Task: Answer the MCQ question.
Query: Which drug exhibits a 1.378\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a COc1ccc(-c2noc(CCC(=O)NCCN(C)Cc3ccccc3)n2)cc1
b O=C(NCCc1nc(-c2ccccc2)cs1)c1ccc(Br)cc1
c O=C(NCC(c1ccco1)N1CCN(c2ccccc2F)CC1)C1CCCCC1
d COc1cccc(NC(=O)Cn2c3ccc(F)cc3c3nc4n(c(=O)c32)CCS4)c1
e COC(=O)c1ccc(COc2ccc(CNCc3ccc(Cl)cc3)cc2)cc1
Answer: b. O=C(NCCc1nc(-c2ccccc2)cs1)c1ccc(Br)cc1
{#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(NCCc1nc(-c2ccccc2)cs1)c1ccc(Br)cc1
O=C(NCCc1nc(-c2ccccc2)cs1)c1ccc(Br)cc1
4-bromo-N-[2-(4-phenyl-1,3-thiazol-2-yl)ethyl]benzamide