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Pinguisane and dimeric pinguisane-type sesquiterpenoids from the Japanese liverwort Porella acutifolia subsp. tosana. Hashimoto, T : Irita, H : Tanaka, M : Takaoka, S : Asakawa, Y Phytochemistry. 2000 Mar;53(5):593-604 |
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2Â¥2010-06-28 08:31:02
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xiaodu2007693(½ð±Ò+1):лл»ý¼«°ïÖúÂ¥Ö÷£¬2Â¥ÒѾÏÂÔØÉÏ´«ÁË 2010-06-28 18:42:30
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xiaodu2007693(½ð±Ò+1):лл»ý¼«°ïÖúÂ¥Ö÷£¬2Â¥ÒѾÏÂÔØÉÏ´«ÁË 2010-06-28 18:42:30
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4Â¥2010-06-28 16:38:32
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xiaodu2007693:лл»ý¼«°ïÖúÂ¥Ö÷£¬2Â¥ÒѾÏÂÔØÉÏ´«ÁË 2010-06-28 18:42:49
liruijuan1836(½ð±Ò+1):лл²ÎÓë
xiaodu2007693:лл»ý¼«°ïÖúÂ¥Ö÷£¬2Â¥ÒѾÏÂÔØÉÏ´«ÁË 2010-06-28 18:42:49
[img] [/img]ÎÄÏ×ÒѾÏÂÔØºÃÁË£¡£¡£¡ Çë¿´ÏÂÎÄ ÕªÒª Abstract Two new pinguisane-type, three new Diels¡ÀAlder reaction-type dimeric pinguisane sesquiterpenoids and known sesqui and diterpenoids were isolated from the ether extract of the Japanese liverwort Porella acutifolia subsp. tosana. Their absolute stereostructures were established by a combination of extensive 2D-NMR, CD spectra, X-ray crystallographic analysis, modi®ed Mosher's method and chemical correlation. 2000 Elsevier Science Ltd. All rights reserved. ÏÂÔØÁ´½ÓÈçÏ http://www.namipan.com/d/Pinguis ... ifolia%20subsp.PDF/ |

5Â¥2010-06-28 17:00:33













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