Task: Answer the MCQ question.
Query: Which compound has a 1.623\% 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) O=c1c(-c2ccc3c(c2)OCCO3)coc2cc(O)cc(O)c12
b) O=C(CN1C(=O)COc2ccc(Cl)cc21)Nc1nccs1
c) CC1(C)Cc2nc3sc4c(=O)n(CC(=O)NC(c5ccccc5)c5ccccc5)cnc4c3cc2CO1
d) O=C(NCc1cc([N+](=O)[O-])ccc1O)c1ccc(COc2ccccc2)cc1
e) O=C(NC1CCCCCC1)C1CCN(c2nc3ccccc3o2)CC1
Answer: b. O=C(CN1C(=O)COc2ccc(Cl)cc21)Nc1nccs1
{#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(CN1C(=O)COc2ccc(Cl)cc21)Nc1nccs1
O=C(CN1C(=O)COc2ccc(Cl)cc21)Nc1nccs1
2-(6-chloro-3-oxo-1,4-benzoxazin-4-yl)-N-(1,3-thiazol-2-yl)acetamide