Task: Answer the MCQ question.
Query: Which compound has a 2.648\% 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 other words.
Options:
a: COCC(C)NCC(=O)NC(C)CCc1ccccc1.O=C(O)C(=O)O
b: COc1ccccc1CNC(=O)Cn1c(=O)oc2cc(Cl)ccc21
c: Cc1ccc(C)c2[nH]c(=O)c(CCNC(=O)C(C)(C)C)cc12
d: OCCN1CCN(Cc2cc(Br)cc(Br)c2O)CC1
e: O=C(COC(=O)Cn1cnc2ccccc2c1=O)NCCC1=CCCCC1
Answer: b. COc1ccccc1CNC(=O)Cn1c(=O)oc2cc(Cl)ccc21
{#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#}
COc1ccccc1CNC(=O)Cn1c(=O)oc2cc(Cl)ccc21
COc1ccccc1CNC(=O)Cn1c(=O)oc2cc(Cl)ccc21
2-(6-chloro-2-oxo-[1,3]benzoxazol-3-yl)-N-[(2-methoxyphenyl)methyl]acetamide