Task: Answer the multiple choice question.
Query: Which drug exhibits a -4.221\% human ether-à-go-go related gene (hERG) inhibition at 1uM?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CC(=O)NCC1CCCN(C(=O)c2ccc(OC3CCN(Cc4ccccn4)CC3)cc2)C1
b: COc1cccc(NC(=S)N(CCCN2CCCC2)Cc2cccn2Cc2ccc(Cl)cc2)c1
Answer: b. COc1cccc(NC(=S)N(CCCN2CCCC2)Cc2cccn2Cc2ccc(Cl)cc2)c1
{#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#}
COc1cccc(NC(=S)N(CCCN2CCCC2)Cc2cccn2Cc2ccc(Cl)cc2)c1
COc1cccc(NC(=S)N(CCCN2CCCC2)Cc2cccn2Cc2ccc(Cl)cc2)c1
1-[[1-[(4-chlorophenyl)methyl]pyrrol-2-yl]methyl]-3-(3-methoxyphenyl)-1-(3-pyrrolidin-1-ylpropyl)thiourea