Identification of prostaglandins E (series 1 and 2) isolated from the living tissues ofLarix sibirica andPopulus balzamifera

Prostaglandins E₁ and E₂ have been isolated for the first time from living tissues of the Siberian larch and the southern pine. The crude extract was purified by column and preparative thin-layer chromatography. The PGEs were identified by TLC and GLC, by UV and IR spectroscopy, and by chromato-mass spectrometry.Siberian Technological Institute, Krasnoyarsk, Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 567–571, September–October, 1984.