• 제목/요약/키워드: heraclenin

검색결과 4건 처리시간 0.016초

Coumarins and Chromones from Angelica genuflexa

  • An, Ren-Bo;Park, Bo-Young;Kim, Jung-Hee;Kwon, Ok-Kyoung;Lee, Joong-Ku;Min, Byung-Sun;Ahn, Kyung-Seop;Oh, Sei-Ryang;Lee, Hyeong-Kyu
    • Natural Product Sciences
    • /
    • 제11권2호
    • /
    • pp.79-84
    • /
    • 2005
  • Thirteen compounds were isolated from the roots of Angelica genuflexa through repeated silica gel column chromatography. Nine coumarins, isoimperatorin (1), osthol (2), demethylsuberosin (3), oxypeucedanin (4), heraclenin (5), pabulenol (7), umbelliferone (8), oxypeucedanin hydrate (9) and marmesinin (11), and four chromones, hamaudol (6), cimifugin (10), sec-O-glucosylhamaudol (12) and prim-O-glucosylcimifugin (13), were identified by physicochemical and spectroscopic analysis. Among these, compounds 3, 5, 6, 8, 12, and 13 were isolated for the first time from the roots of Angelica genuflexa. These coumarins and chromones were examined for their anticomplement activity. Demethylsuberosin (3) showed a weak anticomplement activity with an $IC_{50}$ value of $390\;{\mu}M$.

Studies on chemical constituents form roots of Angelica koreana

  • An, Ren-Bo;Min, Byung-Sun;Lee, Joong-Ku;Park, Bo-Young;Kim, Tae-Jin;Lee, Hyeong-Kyu
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
    • /
    • pp.197.1-197.1
    • /
    • 2003
  • To investigate biological active constituents from natural products, we have studied the roots of Angelica koreana Max. (Umbelliferae). Fifteen compounds were isolated from the MeOH extract by column chromatography on a silica gel. The compounds were identified as isoimperatorin, oxypeucedanin, oxypeucedanin hydrate, osthol, nodakenin, 2-hydroxy-4-methylacetophenone, cimifugin, falcarindiol, heraclenin, pabulenol, umbelliferone, demethylsuberosin, hamaudol, sec-O-glucosylhamaudol, and prim-O-glucosylcimifugin, respectivelv, by spectroscopic means. Among these, the latter eight compounds were isolated for the first time form this plant.

  • PDF

궁궁이(Angelica polymorpha MAXIM)로부터 분리한 Coumarin 계열 화합물의 Melanin 생합성 억제 활성 (Melanin Biosynthesis Inhibitory Activities of Coumarins Isolated from Angelica polymorpha MAXIM)

  • 이충환;백승화;김진희;김현아;이상명;이찬용;고영희
    • 한국미생물·생명공학회지
    • /
    • 제31권2호
    • /
    • pp.135-139
    • /
    • 2003
  • Melanin 생합성에 key enzyme인 tyrosinase 억제가 melanin색소 억제에 주된 요인으로 알려져 있지만, 생합성기작에는 여러 다른 요인들이 작용하기 때문에 일차적인 탐색 단계에서 tyrosinase 저해 활성뿐만 아니라 S. bikiniensis의 melanin생합성 억제 연구를 병행하여 천연물을 탐색하였다. 그 중 선택된 궁궁이 (Angelica poiymorpha MAXIM)에서 3가지 물질을 분리하였으며, 3가지 물질 모두가 100$\mu\textrm{g}$/$m\ell$ 이상 농도에서도 tyrosinase억제 활성이 나타나지 않는 반면, S. bikiniensis melanin 생합성 저해 효과를 보여 주었다. 동일 농도에서 S. bikinieffsis의 생장에는 영향을 미치지 않았다.