Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 1.616\% 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: COc1cccc(OCC(=O)Nc2ccc(OC)c(OC)c2)c1
b: N#Cc1cc([N+](=O)[O-])ccc1Oc1cccc(/C=N/NC(=O)c2cccc(Cl)c2)c1
c: O=C(COC(=O)[C@@H]1CC(O)CN1S(=O)(=O)c1ccccc1[N+](=O)[O-])Nc1ccc2ccccc2c1
d: CSc1ccc2c(c1)N(CCC1CCCCN1C)c1ccccc1S2.Cl
Answer: d. CSc1ccc2c(c1)N(CCC1CCCCN1C)c1ccccc1S2.Cl
{#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#}
10-[2-(1-methylpiperidin-2-yl)ethyl]-2-methylsulfanylphenothiazine;hydrochloride