Two new C21 steroidal glycosides from Marsdenia tenacissima / 药学学报

<p><b>AIM</b>To study the chemical constituents of Marsdenia tenacissima (Roxb.) Wight et Arn.</p><p><b>METHODS</b>To separate compounds with various chromatography technology and to elucidate their structures by chemical and spectral analysis.</p><p><b>RESULTS</b>Two compounds were isolated from Marsdenia tenacissima and their stuctures were determined as tenacissosides J (I) and tenacissosides K (II).</p><p><b>CONCLUSION</b>Compounds I and II are new C21 steroidal glycosides.</p>

Studies on chemical constituents in fruit of Eucalyptus globulus / 中国中药杂志

<p><b>OBJECTIVE</b>AIM To study the chemical constituents of the fruit of Eucalyptus globulus.</p><p><b>METHOD</b>Various column chromatographies with silica gel were employed for the isolation and purification. The structures of the compounds were elucidated with of spectral analyses and chemical methods.</p><p><b>RESULT</b>Five compounds were isolated and elucidated as follows: betulonic acid (I), betulinic acid (II), ursolic acid (III), corosolic acid (IV), daucosterol (V).</p><p><b>CONCLUSION</b>Compound I, II, III and IV were isolated from this plant for the first time.</p>

Identifying the origin fungi of the traditional Chinese medicine Hongqu with capillary gas chromatography method / 第二军医大学学报

Objective：To establish a capillary gas chromatography(CGC) method for identifying the origin fungi of traditional Chinese medicine Hongqu. Methods：The volatile components of 7 species of Monascus including M. purpureus Went, M.aurantiacus Lee, M. serorubesceus　Sato, M. albidus Sato, M. barkeri Dangerd, M. ruber van　Tieghem, and　M.fuliginosus　Sato were analyzed by capillary gas chromatography method. Inlet temperature and detector temperature were 280℃，temperature program were 130℃,5 min→10℃/min→200℃, 10 min FID was used for detection. Results：The variety and contents of the volatility components in Monascus had obvious differences which can be distinguished easily by the main fingerprint peaks within 20 min. Conclusion：This method is useful to identify of Monascus fungi.

Identifying the origin fungi of the traditional Chinese medicine Hongqu with capillary gas chromatography method / 第二军医大学学报

Objective：To establish a capillary gas chromatography(CGC) method for identifying the origin fungi of traditional Chinese medicine Hongqu. Methods：The volatile components of 7 species of Monascus including M. purpureus Went, M.aurantiacus Lee, M. serorubesceus　Sato, M. albidus Sato, M. barkeri Dangerd, M. ruber van　Tieghem, and　M.fuliginosus　Sato were analyzed by capillary gas chromatography method. Inlet temperature and detector temperature were 280℃，temperature program were 130℃,5 min→10℃/min→200℃, 10 min FID was used for detection. Results：The variety and contents of the volatility components in Monascus had obvious differences which can be distinguished easily by the main fingerprint peaks within 20 min. Conclusion：This method is useful to identify of Monascus fungi.