Studies on the Chemical Constituents of the Wood and the Bark of Picea morrisonicola Hayata and the Wood of Cunninghamia lanceolata Hook. f.

• Main Authors: Ming-Hsi Yeh, 葉明熙
• Other Authors: Yueh-Hsiung Kuo
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/65482237284368774707

博士 === 國立臺灣大學 === 化學研究所 === 87 === The wood and the bark of Picea morrisonnicola Hayata were extracted with methanol for three times in room temperature. After fractionation of these extracts using repeated column chromatography on Si gel and HPLC, eighty-three compounds including seventeen new compounds and thirty-one compounds have been isolated from the extract of the wood and the bark of P. morrisonnicola Hayata, respectively. Those are one long chain compound, eleven steroids, five monoterpenoids, two sesquiterpenoids, thirty-two diterpenoids, nine aromatic compounds, one flavonoid and two other compounds from the wood of P. morrisonnicola Hayata. There were two sesquiterpenoids, fourteen diterpenoids, four triterpenoids, four steroids, three lignans, three aromatic compounds and one long chain compounds from the extract of the bark of Cunninghamia lanceolata Hook. Only two species of Cunninghamia (Taxodiaceae) grow in Taiwan. Cunninghamia lanceolata Hook grows in the central part of Taiwan at altitudes of 1300-2700 meters. The wood of this tree is one of the best building materials in Taiwan. The methanol extract from the wood of C. lanceolata Hook was concentrated to give a residue which was suspended with water. The suspended aqueous solution was partitioned with ethyl acetate. The ethyl acetate extract was repeatedly purified on Si and HPLC, thirty-eight compounds were isolated including thirteen new compounds. Among these new compounds there were three monoterpenoids, two sesquiterpenoids, one diterpenoid and seven lignans.