Problem statement: Answer the multiple-choice question.
Question: Which drug has a 19.479\% 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 O=C(CSC1=NCCS1)N1CCCC1
b COc1ccc(OC)c(C(C)NC(=O)c2ccc(Br)cc2)c1
c CC/C(=N/NC(=O)c1ccccc1O)c1c(C)[nH]n(-c2ccccc2)c1=O
d O=C(CN1CCN(C(=O)CNC(=O)c2ccc3c(c2)OCO3)CC1)Nc1cccc(F)c1
Answer: a. O=C(CSC1=NCCS1)N1CCCC1
{#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(CSC1=NCCS1)N1CCCC1
O=C(CSC1=NCCS1)N1CCCC1
2-(4,5-dihydro-1,3-thiazol-2-ylsulfanyl)-1-pyrrolidin-1-ylethanone