The Coumarins of the Roots of Heracleum sosnowskyi

6 coumarinic derivatives were isolated from the roots of Heracleum sosnowskyi Manden, collected in
September 2013 in the vicinity of the village of Kuzun of the Gusar region of Azerbaijan by
chromatography of the amount of extractives obtained by extracting plant material (shredded, air-
dried roots) with acetone on a column of an Aho,: 1) C₁H₂O₁, m.p. 161-163°C; II) C₁H₂O₂, m.p. 138-
139°C; III) C₁H,O, m.p. 189-191°C; IV) C₁H₂O, m.p. 145-146°C; V) CHO, m.p. 116-118, VI)
C₁H₁Os, m.p. 118-120°C; Based on the data obtained, when interpreting IR and 'H NMR spectra, the
obtained coumarin derivatives were identified with psoralen, angelicin, xanthotoxin, bergapten,
pimpinellin and isopimninellin, respectively.