Diterpene Hydrocarbons from the leaf oil of Thujopsis dolabrata var. dolabrata

Nagahama, Shizuo; Tajima, M.

doi:10.1016/0305-1978(95)00104-2

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…One abundant unknown compound in the samples seemed to be hibaene which is a diterpene also known as a constituent of coniferous leaves (Yatagai et al, 1985;Nagahama and Tajima, 1996). The mass spectrum obtained in this study was similar to that in NIST library.…”

Section: Discussionsupporting

confidence: 57%

Determination and potential importance of diterpene (kaur-16-ene) emitted from dominant coniferous trees in Japan

et al. 2012

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Reactive volatile organic compounds (VOCs) are known to affect atmospheric chemistry. Biogenic VOCs (BVOCs) have a significant impact on regional air quality due to their large emission rates and high reactivities. Diterpenes (most particularly, kaur-16-ene) were detected in all of the 205 enclosure air samples collected over multiple seasons at two different sites from Cryptomeria japonica and Chamaecyparis obtusa trees, the dominant coniferous trees in Japan,. The emission rate of kaur-16-ene, was determined to be from 0.01 to 7.1 μg dwg -1 h -1 (average: 0.61 μg dwg -1 h -1 ) employing branch enclosure measurements using adsorbent sampling followed by solid phase -liquid extraction techniques. The emission rate was comparable to that of monoterpenes, which is known major BVOC emissions, collected from the same branches. In addition, total emission of kaur-16-ene at 30 ºC was estimated to exceed that of total anthropogenic VOC emissions.

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Section: Discussionsupporting

confidence: 57%

Determination and potential importance of diterpene (kaur-16-ene) emitted from dominant coniferous trees in Japan

et al. 2012

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“…Dolabrane diterpenoids are a small group of natural products reported mainly from plants. To date, only 37 dolabranes have been characterized from the plant genera Araucaria , Croton , Dichapetalum , Endospermum , Erythroxylum , Fagonia , Givotia , Helichrysum , Mallotus , Petalostigma , Rondeletia, Trigonia , and Thujopsis ,− ,− and from the liverwort Schistochila aligera , whereas 18 dolabranes have been identified from the mangrove, Ceriops tagal . Obviously, C. tagal is a valuable source for the production of dolabranes.…”

Section: Resultsmentioning

confidence: 99%

Dolabranes from the Chinese Mangrove, Ceriops tagal

et al. 2010

J. Nat. Prod.

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Six new dolabranes, named tagalsins P-U (1-6), were isolated from stems and twigs of a Chinese mangrove, Ceriops tagal, along with seven known dolabranes, an abietane, and a pimarane. The structures of these compounds were established on the basis of spectroscopic data or comparison with data in the literature. The relative configurations of tagalsins P and Q (1, 2), two new 15,16-dinor-dolabranes, were confirmed by means of single-crystal X-ray diffraction analysis. This is the first report of 16-nordolabranes and 15,16-dinordolabranes from plants of the Ceriops genus. Tagalsins Q (2), R (3), and U (6) showed moderate antifeedant activity against the third-instar larvae of Brontispa longissima at a concentration of 1 mg/mL. However, none of the new dolabranes exhibited significant activity against human cancer cell lines.

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Chemical Constituents and Some Biological Activities of Plants from the Genus Ceriops

Wang

2012

Chemistry & Biodiversity

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In this review, the literature data on phytochemical and biological investigations of the genus Ceriops are compiled. The Ceriops species are mangrove plants widely distributed along the sea coasts of Africa, Madagascar, South Asia, and South Pacific islands. To date, 43 diterpenes and 29 triterpenes have been reported from the embryos, fruits, hypocotyls, roots, stems, and twigs of C. tagal and C. decandra. Diterpenoids and triterpenoids are the main constituents of this genus. The isolated terpenes showed an enormous structural diversity and exhibited various biological properties, such as antitumor, antibacterial, and larvicidal activities.

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Diterpene Hydrocarbons from the leaf oil of Thujopsis dolabrata var. dolabrata

Cited by 7 publications

References 6 publications

Determination and potential importance of diterpene (kaur-16-ene) emitted from dominant coniferous trees in Japan

Determination and potential importance of diterpene (kaur-16-ene) emitted from dominant coniferous trees in Japan

Dolabranes from the Chinese Mangrove, Ceriops tagal

Chemical Constituents and Some Biological Activities of Plants from the Genus Ceriops

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