- Total Synthesis of Homochiral Kadsurin Having the Natural Configuration
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The total synthesis of kadsurin was achieved in a stereoselective manner.The stereoselective hydrogenation of the homochiral enone (12), obtained from the known tetracyclic lactone (7), afforded known ketone (13), the conversion of which into kadsurin has
- Ohshima, Toshihiro,Tanaka, Masahide,Mitsuhashi, Hiroshi,Maruno, Masao,Wakamatsu, Takeshi
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p. 139 - 146
(2007/10/02)
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- KADSULIGNANS H, I, J AND K FROM A KADSURA SPECIES
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Four new lignans, kadsulignan H, I, J and K were isolated from the seeds of a Kadsura sp., of which kadsulignan possesses a novel benzobicyclooctane skeleton.Their structures, including absolute configurations, were elucidated by 2D 1H-13C long range COSY spectra and chemical conversions. Key Word Index: Kadsura; Schisandraceae; lignans; kadsulignans H, I, J, K.
- Liu, Jia-Sen,Zhou, Hong-Xing,Li, Liang
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p. 1379 - 1382
(2007/10/02)
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- DIBENZOCYCLO-OCTADIENE LIGNANS FROM KADSURA HETEROCLITA
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From the stems of Kadsura heteroclita, new dibenzocyclo-octadiene lignans, named heteroclitins A-E, were isolated together with the known compounds, kadsurin and interiorin.Their structures were determinedby spectroscopic means. Key words: Kadsura heteroclita; Schizandraceae; stems; heteroclitin; dibenzocyclo-octadine lignans.
- Chen, Dao-Feng,Xu, Guo-Jun,Yang, Xiu-Wei,Hattori, Masao,Tezuka, Yasuhiro,et al.
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p. 629 - 632
(2007/10/02)
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- The Constituents of Schizandra Chinensis Baill. XI. The Structures of Three New Lignans, Angeloylgomasin O, and Angeloyl- and Benzylisogomisin O
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Three new dibenzocyclooctadiene lignans, angeloylgomisin O (1), and angeloyl-(2) and benzoylisogomisin O(3) were isolated from fruits of Schizandra chinensis Baill. (Schizandraceae).Their absolute structures were elucidated by means of chemical and spectral studies.Keywords - Schizandra chinensis Baill.; Schizandraceae; dibenzocyclooctadiene; lignan; angeloylgomisin O; angeloylisogomisin O; benzoylgomisin O; 13C-NMR
- Ikeya, Yukinobu,Ookawa, Noriyuki,Taguchi, Heihachiro,Yosioka, Itiro
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p. 3202 - 3206
(2007/10/02)
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