O-(1,2-Dihydro-2-oxo-1-pyridyl)-N,N,N',N'-bis-(tetramethylene)uronium hexafluorophosphate

(1,2-dihydro-2-oxo-1-pyridyloxy)dipyrrolidinocarbenium hexafluorophosphate ; o-(1,2-dihydro-2-oxo-1-pyridyl)-bis(te. methylene)uron. pf6 ; n,n,n',n'-bis(tetramethylene)-o-(1,2-dihydro-2-oxo-1-pyridyl)uronium hexafluorophosphate ; o-(1,2-dihydro-2-oxo-1-pyridyl)-n,n,n',n'-bis(tetramethylene)uronium hexafluorophosphate ; hbtpyu ; n,n,n?,n?-bis(tetramethylene)-o-(1,2-dihydro-2-oxo-1-pyridyl)uronium hexafluorophosphate, (1,2-dihydro-2-oxo-1-pyridyloxy)dipyrrolidinocarbenium hexafluorophosphate ; n,n,n',n'-bis(tetramethylene)-o-(1,2-dihydro-2-oxo-1-pyridyl)uronium hexafluorophosph ; o-(1,2-dihydro-2-oxo