Two new lignans, (8S,8′S)-4,3′-dihydroxy-3,4′,5′-trimethoxylignan-9′,9-olide (1) and trans–4′,8,8′-trihydroxy-3′-methoxy-3,4-methylenedioxylignan-9′,9-olide (2), were isolated from the wood of Cunninghamia konishii. Their structures were determined by analysis of spectroscopic data.
LiH.L., KengH. (1994) Flora of Taiwan, 2nd ed. Editorial Committee of the Flora of Taiwan, Taipei, 582–585.
2.
(a) IkedaT., FujitaY. (1929) Essential oils of Cunninghamia konishii Hayata. Bulletin of the Chemical Society of Japan, 50, 32–45;(b) Ikeda T, Fujita Y. (1929) The pinene in Cunninghamia konishii Hayata. Bulletin of the Chemical Society of Japan, 50, 66–70; (c) Cheng YS, Lin CS. (1979) Study of the extractive constituents from the wood of Cunninghamia konishii Hayata. Journal of the Chinese Chemical Society, 26, 169–172; (d) Chang ST, Yin HW. (1991) Identificition of the needle crystal appeared on the wood surface of Cunninghamia konishii Hyata. Bulletin of Taiwan Forest Research Institute New Series, 6, 57–63; (e) Li YC, Kuo YH. (1998) Five new diterpenoids from the wood of Cunninghamia konishii. Journal of Natural Products, 61, 997–1000; (f) Li YC, Kuo YH. (2002) Labdane-type diterpenoids from the wood of Cunninghamia konishii. Chemical & Pharmaceutical Bulletin, 50, 498–500; (g) Cheng SS, Lin CY, Gu HJ, Chang ST. (2011) Antifungal activities and chemical composition of wood and leaf essential oils from Cunninghamia konishii. Journal of Wood Chemistry and Technology, 31, 204–217; (h) Cheng SS, Chung MJ, Lin CY, Wang YN, Chang ST. (2012) Phytochemicals from Cunninghamia konishii Hayata act as antifungal agents. Journal of Agricultural and Food Chemistry, 60, 124–128; (i) Chen YC, Li YC, You BJ, Chang WT, Chao LK, Lo LC, Wang SY, Huang GJ, Kuo YH. (2013) Diterpenoids with anti-inflammatory activity from the wood of Cunninghamia konishii. Molecules, 18, 682–689; (j) Cheng YS, Tsai MD. (1972) Terpenes and sterols of Cunninghamia konishii. Phytochemistry, 11, 2108–2109; (k) He K, Shi G, Zeng L, Ye Q, McLaughlin JL. (1997) Konishiol, a new sesquiterpene, and bioactive components from Cunninghamia konishii. Planta Medica, 63, 158–160.
3.
(a) UmeharaK., SugawaA., KuroyanagiM., UenoA., TakiT. (1993) Studies on differentiation-inducers from Arctium Fructus, Chemical & Pharmaceutical Bulletin, 41, 1774–1779; (b) Xie LH, Ahn EM, Akao T, Abdel-Hafez AA, Nakamura N, Hattori M. (2003) Transformation of arctiin to estrogenic and antiestrogenic substances by human intestinal bacteria. Chemical & Pharmaceutical Bulletin, 51, 378–384.
4.
WooK.W., LeeK.R., ChoiS.U., ParkJ.C. (2011) A new lignan glycoside from Juniperus rigida. Archives of Pharmacal Research, 34, 2043–2049.
