Problem statement: Answer the MCQ question.
Question: Which compound exhibits a 19.168\% 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] O=C(N/N=C\c1ccccn1)C1COc2cc3ccccc3cc2O1
[b] COc1cc2nc(=S)n(CCc3ccccc3)c(N)c2cc1OC
[c] O=C(Nc1ccc(F)cc1F)N1CCN(C/C=C/c2ccccc2)CC1
[d] O=C(CSc1ncnc2c1nnn2-c1ccc(F)cc1)NCC1CCCO1
[e] COC(=O)c1cccc(S(=O)(=O)N2CCC(n3nnc4cc(F)ccc43)CC2)c1
Answer: b. COc1cc2nc(=S)n(CCc3ccccc3)c(N)c2cc1OC
{#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#}
4-amino-6,7-dimethoxy-3-(2-phenylethyl)quinazoline-2-thione