Phytochemical Constituents from Metasequoia glyptostroboids Leaves

다국어 초록 (Multilingual Abstract)

Phytochemical investigation of Metasequoia glyptostroboids leaves resulted in the isolation of ten
compounds. The structures were determined to be isoquercitrin (1), quercitrin (2), myricitrin (3), amentoflavone
(4), sciadopitysin (5), isoginkgetin (6), 2,3-dihydrosciadopitysin (7), 2,3-dihydroisoginkgetin (8), 3β-acetoxy-
8(17),13E-labdadien-15-oic acid (9) and β-sitosterol (10) by spectroscopic analyses. Isoquercitrin (1) was isolated
from this plant for the first time.

참고문헌 (Reference)

1 Fiasson, K.G., "Three new flavonol malonylrhamnosides from Ribes alpinum" 49 : 768-770, 2001

2 Tang, Y.P., "Studies on the constituents of flavonoids from Ginkgo biloba leaves" 36 : 231-233, 2001

3 Braun, S, "Strukturaufklärung einer neuen diterpensäure aus metasequoia glyptostroboides mit hilfe der 13CNMR- spektroskopie" 33 : 145-150, 1977

4 이일균, "Phytochemical Constituents of Schizonepeta tenuifolia Briquet" 한국생약학회 14 (14): 100-106, 2008

5 Fonseca, F.N., "Phenylpropanoid derivatives and biflavones at different stages of differentiation and development of Araucaria angustifolia" 55 : 575-580, 2000

6 Cheng, K.T., "New constituent from Podocarpus macrophyllus var. macrophyllus shows anti-tyrosinase effect and regulates tyrosinaserelated proteins and mRNA in human epidermal melanocytes" 55 : 757-761, 2007

7 Shuichi, H., "Neutral constituents of the methanol extract from twigs of Metasequoia glyptostroboides Hu et Cheng" 17 : 163-167, 1969

8 Camuesco, D., "Intestinal anti-inflammatory activity of combined quercitrin and dietary olive oil supplemented with fish oil, rich in EPA and DHA (n-3) polyunsaturated fatty acids, in rats with DSS-induced colitis" 25 : 466-476, 2006

9 Beckmann, S, "Inhaltsstoffe von Metasequoia glyptostroboides-II flavon- und flavonolglykoside" 7 : 1667-1671, 1968

10 Dae Sik Jang, "Flavonols from Houttuynia cordata with Protein Glycation andAldose Reductase Inhibitory Activity" 한국생약학회 12 (12): 210-213, 2006

11 Mario, J.S., "Cytotoxic chalcones and antioxidants from the fruits of Syzygium samarangense (Wax Jambu)" 107 : 813-819, 2008

12 Ohmoto, T, "Constituents of Pollen. XI. Constituents of Cryptomeria japonica D. Don" 31 : 919-924, 1983

13 Zdero, C., "Clerodane and labdane derivatives from Olearia teretifolia" 31 : 1703-1711, 1992

14 Beckmann, S., "Biflavone und 2,3- dihydrobiflavone aus Metasequoia glyptostroboides" 10 : 2465-2474, 1971

15 Agrawal, P.K., "13C-NMR of flavonoids" Elsevier 1989