Abstract: Two new hetisine-type C20-diterpenoid alkaloids named spiraqine (1) and 6-hydroxylspiraqine (2), and four known alkaloids, namely spiredine (3), spiradine A (4), spiradine B (5), and spirasine V/VI (6), were...Abstract: Two new hetisine-type C20-diterpenoid alkaloids named spiraqine (1) and 6-hydroxylspiraqine (2), and four known alkaloids, namely spiredine (3), spiradine A (4), spiradine B (5), and spirasine V/VI (6), were isolated from Spiraea japonica L. f. var. fortunei(Planchon) Rehd. The structures of the alkaloids were elucidated using nuclear magnetic resonance analysis (1H-NMR, 13C-NMR, DEPT, HMQC, and HMBC) and mass spectrometry data.展开更多
Potentilla viscosa J. Don is widely distributed over the districts of Baicheng and Yanbian in Jilin Province. The root of P. viscosa can be used for the treatment of hepatitis. In our chemical investigation of tannin,...Potentilla viscosa J. Don is widely distributed over the districts of Baicheng and Yanbian in Jilin Province. The root of P. viscosa can be used for the treatment of hepatitis. In our chemical investigation of tannin, we isolated seven compounds. Now we will describe them as follows.展开更多
文摘Abstract: Two new hetisine-type C20-diterpenoid alkaloids named spiraqine (1) and 6-hydroxylspiraqine (2), and four known alkaloids, namely spiredine (3), spiradine A (4), spiradine B (5), and spirasine V/VI (6), were isolated from Spiraea japonica L. f. var. fortunei(Planchon) Rehd. The structures of the alkaloids were elucidated using nuclear magnetic resonance analysis (1H-NMR, 13C-NMR, DEPT, HMQC, and HMBC) and mass spectrometry data.
文摘Potentilla viscosa J. Don is widely distributed over the districts of Baicheng and Yanbian in Jilin Province. The root of P. viscosa can be used for the treatment of hepatitis. In our chemical investigation of tannin, we isolated seven compounds. Now we will describe them as follows.
