Problem statement: Answer the multiple choice question.
Question: Which drug exhibits a -42.981\% 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: Cn1c(CNC(=O)c2ccco2)nnc1SCC(=O)Nc1ccc(Br)cc1F
b: COc1ccccc1C(=O)Nc1cc2c(cc1C(=O)O)OCCCO2
c: O=C(NCCCN=C1NS(=O)(=O)c2ccccc21)c1ccco1
d: O=c1[nH]c2ccc(Cl)cc2c(-c2ccccc2)c1N1CCN(CCO)CC1
Answer: d. O=c1[nH]c2ccc(Cl)cc2c(-c2ccccc2)c1N1CCN(CCO)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=c1[nH]c2ccc(Cl)cc2c(-c2ccccc2)c1N1CCN(CCO)CC1
O=c1[nH]c2ccc(Cl)cc2c(-c2ccccc2)c1N1CCN(CCO)CC1
6-chloro-3-[4-(2-hydroxyethyl)piperazin-1-yl]-4-phenyl-1H-quinolin-2-one