Can I read 4′′′-Acetylvitexin-2′′-O-rhamnoside, Isoorientin, Orientin, and 8-Methoxykaempferol-3-O-glucoside as Markers for the Differentiation of Crataegus monogyna and Crataegus pentagyna from Crataegus laevigata (Rosaceae) on EtoBox?

4′′′-Acetylvitexin-2′′-O-rhamnoside, Isoorientin, Orientin, and 8-Methoxykaempferol-3-O-glucoside as Markers for the Differentiation of Crataegus monogyna and Crataegus pentagyna from Crataegus laevigata (Rosaceae) by Sonja Prinz; Alexandra Ringl; Antje Huefner; Enne Pemp; Brigitte Kopp is a Agricultural and Biological Sciences article available to read on EtoBox.

What is 4′′′-Acetylvitexin-2′′-O-rhamnoside, Isoorientin, Orientin, and 8-Methoxykaempferol-3-O-glucoside as Markers for the Differentiation of Crataegus monogyna and Crataegus pentagyna from Crataegus laevigata (Rosaceae) about?

## Abstract In our chemotaxonomic investigation of pharmaceutically relevant __Crataegus__ species, the qualitative and quantitative flavonoid fingerprint of __Crataegus monogyna__ and __C. pentagyna__ is presented. Six flavonoids were identified as vitexin‐2′′‐__O__‐rhamnoside (**1**), vitexin (**2**), isovitexin (**3**), rutin (**4**), hyperoside (**5**), and isoquercitrin (**6**). Besides the verification of the main compounds isoorientin (**7**) and orientin (**8**) in __C. pentagyna__, further four flavonoids were isolated and identified as isoorientin‐2′′‐__O__‐rhamnoside (**9**), orientin‐2′′‐__O__‐rhamnoside (**10**), isovitexin‐2′′‐__O__‐rhamnoside (**11**), and 8‐methoxykaempferol‐3‐__O__‐glucoside (**12**) by means of 1D‐ and 2D‐NMR, MS, and UV analyses. Compound **12** was isolated for the first time from __C. pentagyna.__ In contrast to __C. pentagyna, C. monogyna__ samples were predominated by 4′′′‐acetylvitexin‐2′′‐__O__‐rhamnoside (**13**), which was missing in __C. pentagyna.__ Hence, **13** represents an interesting compound for chemotaxonomy of __C. monogyna__, whereas the main flavonoids **7, 8**, and **12** could be proposed as markers for __C. pentagyna.__ The

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Author

Sonja Prinz; Alexandra Ringl; Antje Huefner; Enne Pemp; Brigitte Kopp

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 1612-1872)

Published

2007

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)