目的:完善卷柏的质量标准。方法:依据《中国药典》2010年版附录相关方法,对卷柏药材进行显微鉴别,对灰分、酸不溶性灰分进行检查。采用HPLC检测selaginellin和穗花杉双黄酮的含量,选用Waters Cosmosil C18柱(250 mm×4.6 mm id,5μ...目的:完善卷柏的质量标准。方法:依据《中国药典》2010年版附录相关方法,对卷柏药材进行显微鉴别,对灰分、酸不溶性灰分进行检查。采用HPLC检测selaginellin和穗花杉双黄酮的含量,选用Waters Cosmosil C18柱(250 mm×4.6 mm id,5μm);检测波长:300、337 nm;流速:1 m L·min-1;柱温:30℃;流动相:乙腈-0.1%甲酸水梯度洗脱。结果:确定了卷柏药材的显微特征;酸不溶性灰分限度≤11.0%,总灰分限度≤15.0%;建立同时测定卷柏药材中穗花杉双黄酮和selaginellin的HPLC含量检测方法。结论:卷柏药材的显微鉴别,以及同时测定穗花杉双黄酮和selaginellin的HPLC含量测定等方法简便、准确、重现性好,可有效控制卷柏药材的质量。展开更多
Isoselagintamarlin A(1),a selaginellin analogue featured a rare benzofuran unit,was isolated from Selaginella tamariscina.Its complete structural assignment was established through a combination of high-feld NMR techn...Isoselagintamarlin A(1),a selaginellin analogue featured a rare benzofuran unit,was isolated from Selaginella tamariscina.Its complete structural assignment was established through a combination of high-feld NMR technique and biomimetic synthesis.Notably,isoselagintamarlin A(1)was successfully synthesized via sequential oxidations and intramolecular cyclization.展开更多
文摘目的:完善卷柏的质量标准。方法:依据《中国药典》2010年版附录相关方法,对卷柏药材进行显微鉴别,对灰分、酸不溶性灰分进行检查。采用HPLC检测selaginellin和穗花杉双黄酮的含量,选用Waters Cosmosil C18柱(250 mm×4.6 mm id,5μm);检测波长:300、337 nm;流速:1 m L·min-1;柱温:30℃;流动相:乙腈-0.1%甲酸水梯度洗脱。结果:确定了卷柏药材的显微特征;酸不溶性灰分限度≤11.0%,总灰分限度≤15.0%;建立同时测定卷柏药材中穗花杉双黄酮和selaginellin的HPLC含量检测方法。结论:卷柏药材的显微鉴别,以及同时测定穗花杉双黄酮和selaginellin的HPLC含量测定等方法简便、准确、重现性好,可有效控制卷柏药材的质量。
基金supported by the NSFC-Joint Foundation of Yunnan Province(No.U1502223)the National Natural Science Foundation of China(Nos.21837003,21778059 and 81773611)the Science and Technology Program of Yunnan Province(No.2018ZF001).
文摘Isoselagintamarlin A(1),a selaginellin analogue featured a rare benzofuran unit,was isolated from Selaginella tamariscina.Its complete structural assignment was established through a combination of high-feld NMR technique and biomimetic synthesis.Notably,isoselagintamarlin A(1)was successfully synthesized via sequential oxidations and intramolecular cyclization.