Task: Answer the MCQ question.
Query: Which compound exhibits a 18.109\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a: CCCc1nnc(NC(=O)CNc2ccc(F)cc2)s1
b: O=c1[nH]cnc2[nH]ncc12
c: COc1ccccc1NC(=O)CSc1ccc(-c2ccc(-n3ccnc3)cc2)nn1
d: COc1ccc(C(=O)NCCC(=O)N2CCC3(CC2)NCCc2[nH]cnc23)cc1
e: Cc1ccc2c(c1)N(CC(=O)N(Cc1ccc3c(c1)OCO3)CC1CCCO1)C(=O)C(C)O2
Answer: b. O=c1[nH]cnc2[nH]ncc12
{#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=c1[nH]cnc2[nH]ncc12
O=c1[nH]cnc2[nH]ncc12
1,5-dihydropyrazolo[3,4-d]pyrimidin-4-one