Problem statement: Answer the multiple choice question.
Query: Which compound exhibits a 0.656\% 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.) CCC(C)C(=O)Nc1cc([N+](=O)[O-])ccc1Cl
b.) CCOC(=O)NC(CC(=O)O)c1ccc(OCC)cc1
c.) O=C(CN1C(=O)c2ccccc2S1(=O)=O)N1CCN(c2ccccc2)CC1
d.) Cc1cc(C)nc(NN=C2CCCC2)n1
Answer: b. CCOC(=O)NC(CC(=O)O)c1ccc(OCC)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#}
3-(ethoxycarbonylamino)-3-(4-ethoxyphenyl)propanoic acid