Task: Answer the MCQ question.
Question: Which drug exhibits a 1.531\% hERG inhibition at a concentration of 1uM?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a.) CCc1ccc(OCC(=O)N(C)CCC#N)c(Br)c1
b.) O=C(Nc1ccc2oc(-c3cccnc3)nc2c1)c1ccco1
c.) COc1cc(NC(=O)c2ccc(-c3ccc(Br)cc3)o2)ccc1NC(=O)C(C)C
d.) COc1ccc(-c2nc(NC(=O)c3ccc(OCC(=O)N4CCOCC4)c(OC)c3)sc2C)cc1
Answer: b. O=C(Nc1ccc2oc(-c3cccnc3)nc2c1)c1ccco1
{#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(Nc1ccc2oc(-c3cccnc3)nc2c1)c1ccco1
O=C(Nc1ccc2oc(-c3cccnc3)nc2c1)c1ccco1
N-(2-pyridin-3-yl-1,3-benzoxazol-5-yl)furan-2-carboxamide