Task: Please answer the following question about the molecule with SMILES C#Cc1cccc(Nc2ncnc3cc4c(cc23)OCCOCCOCCO4)c1.
Request: Which USAN substem can this drug or clinical candidate name be matched with?
Result: -tinib
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
C#Cc1cccc(Nc2ncnc3cc4c(cc23)OCCOCCOCCO4)c1
C#Cc1cccc(Nc2ncnc3cc4c(cc23)OCCOCCOCCO4)c1
N-(3-ethynylphenyl)-2,5,8,11-tetraoxa-15,17-diazatricyclo[10.8.0.014,19]icosa-1(12),13,15,17,19-pentaen-18-amine
Which USAN substem can this drug or clinical candidate name be matched with?