Task: Answer the multiple choice question.
Question: Which compound exhibits a 2.654\% 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.) COc1ccc2c(c1)c(=O)oc1c(C)c(OCc3cc(C(=O)O)oc3C)ccc12
b.) CC(C)OC(=O)Cn1c(=O)oc2ccccc21
c.) CCN(Cc1ccccc1)C(=O)CSc1ccccc1C(=O)O
d.) c1ccc(-n2ncc3c(N4CCCC4)ncnc32)cc1
Answer: d. c1ccc(-n2ncc3c(N4CCCC4)ncnc32)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#}
1-phenyl-4-pyrrolidin-1-ylpyrazolo[3,4-d]pyrimidine