Isolation of a major metabolite (i-OHAP) of aprindine and its identification as N-[3-(N,N-diethylamino)propyl]-N-phenyl-2-aminoindan-5-ol

Mikiko Shimizu, Kazuhiko Takatori, Masahiro Kajiwara, Hiroyasu Ogata

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


i-OHAP, a major metabolite of aprindine (AP), was isolated by TLC from rat feces and identified as N-13-(N,N-diethylamino)propyl]-N-phenyl-2- aminoindan-5-ol, based on 1H-NMR, the H-H correlation spectroscopy (COSY) spectrum, MS and LC-MS. Its structure was also confirmed by comparison with the synthesized compound. The hydroxy group of i-OHAP was located at the 5- position of the indan ring. AP is a prochiral compound, and the metabolism of AP to i-OHAP was stereoselective. The ratio of (+)/(-)-i-OHAP in rat feces and in human urine was about 5 and 15, respectively.

Original languageEnglish
Pages (from-to)530-534
Number of pages5
JournalBiological and Pharmaceutical Bulletin
Issue number5
Publication statusPublished - 1998


  • Aprindine
  • I-OHAP
  • Isolation
  • Metabolite
  • Rat
  • Stereoselectivity

ASJC Scopus subject areas

  • Pharmacology
  • Pharmaceutical Science


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