숙지황(熟地黃)의 성분연구

Phytochemical Studies on Rehmanniae Radix Preparata

  • 이주영 (서울대학교 약학대학 천연물과학연구소) ;
  • 이은주 (서울대학교 약학대학 천연물과학연구소) ;
  • 김주선 (서울대학교 약학대학 천연물과학연구소) ;
  • 이제현 (동국대학교 한의과대학) ;
  • 강삼식 (서울대학교 약학대학 천연물과학연구소)
  • Lee, Joo-Young (Natural Products Research Institute and College of Pharmacy, Seoul National University) ;
  • Lee, Eun-Ju (Natural Products Research Institute and College of Pharmacy, Seoul National University) ;
  • Kim, Ju-Sun (Natural Products Research Institute and College of Pharmacy, Seoul National University) ;
  • Lee, Je-Hyun (Department of Korean Medicine, Dongguk University) ;
  • Kang, Sam-Sik (Natural Products Research Institute and College of Pharmacy, Seoul National University)
  • 투고 : 2011.04.14
  • 심사 : 2011.06.16
  • 발행 : 2011.06.30

초록

Twenty-two compounds were isolated from the 70% ethanolic extract of Rehmanniae Radix Preparata (Scrophulariaceae) and their structures were identified as three triterpenoids [oleanolic acid (1), pomonic acid (2) and ursolic acid (5)], an iridoid, catalpol (13), four furan derivatives [5-hydroxymethyl-2-furaldehyde acetate (3), 5-hydroxymethyl-2-furfural (6), 5-hydroxymethyl-2-furancarboxylic acid (7), and 5-(${\alpha}$-D-galactopyranosyloxymethyl)-2-furancarboxaldehyde (15)], three phenethyl alcohol glycosides [darendoside B (14), phenethyl alcohol 2-O-${\beta}$-D-xylopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside (17), and salidroside (19)], four sugar derivatives [L-arabinose (11), raffinose (20), stachyose (21), and mannitol (22)], and seven others [2,5-dihydroxyacetophenone (4), succinic acid (8), daucosterol (9), ${\beta}$-sitosterol (10), adenosine (16), uridine (18) jio-cerebroside (12)]. The chemical structures of these compounds were identified on the basis of spectroscopic methods and comparison with literature values. This is the first report of the triterpenoids oleanolic acid (1), pomonic acid (2), and ursolic acid (5) from the genus Rehmannia, as well as the first report of compounds 5-hydroxymethyl-2-furaldehyde acetate (3), 2,5-dihydroxyacetophenone (4), daucosterol (9), darendoside B (14), 5-(${\alpha}$-D-galactopyranosyloxymethyl)-2-furancarboxaldehyde (15), adenosine (16), phenethyl alcohol 2-O-${\beta}$-D-xylopyranosyl(1${\rightarrow}$6)-${\beta}$-D-glucopyranoside (17), and salidroside (19) from the Rehmanniae Radix Preparata.

키워드

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