Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 1.345\% human ether-à-go-go related gene (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: CCOC(=O)c1ccc(N2C(=O)CC(N(Cc3ccc4c(c3)OCO4)C(=O)Nc3ccccc3)C2=O)cc1
b: CCCn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
c: CC(CN1CCCCC1)OC(=O)COc1ccc(Cl)cc1.Cl
d: COc1ccc(/C=C/C(=O)Oc2cccc(/C=N/NC(=O)COc3c(C)cccc3C)c2)cc1
Answer: b. CCCn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
{#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#}
CCCn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
CCCn1c(NCc2c[nH]c3ccccc23)nc2ccccc21
N-(1H-indol-3-ylmethyl)-1-propylbenzimidazol-2-amine