A new oxoaporphine alkaloid, 1,2-methylene-dioxy-8-hydroxy-5- oxoaporphine, was isolated from the stem barks of Alphonsea mollis . Its structure was established on the basis of spectral analysis and chemical correlation.
Phytochemical investigation of the whole plants of Dicranostigma leptopodum （Maxim） Fedde has lead to the isolation of five alkaloids： dicranostigmine （1）, isocorydinc （2）, corydine （3）, protopine （4） and s...Phytochemical investigation of the whole plants of Dicranostigma leptopodum （Maxim） Fedde has lead to the isolation of five alkaloids： dicranostigmine （1）, isocorydinc （2）, corydine （3）, protopine （4） and sinoacutine （5）. Oxomorphine alkaloid （5） was isolated from the genus Dicranostigma for the first time and the new compound structure （1） was elucidated by various spectroscopic methods including 2D NMR techniques （gCOSY, HMQC, HMBC and NOESY） and HRESI-MS.展开更多
文摘A new oxoaporphine alkaloid, 1,2-methylene-dioxy-8-hydroxy-5- oxoaporphine, was isolated from the stem barks of Alphonsea mollis . Its structure was established on the basis of spectral analysis and chemical correlation.
基金supported by the"Hundred Talents Program"and"West Light Program"of Chinese Academy of Sciences and the National Natural Sciences Foundation of China(No.20775083)
文摘Phytochemical investigation of the whole plants of Dicranostigma leptopodum （Maxim） Fedde has lead to the isolation of five alkaloids： dicranostigmine （1）, isocorydinc （2）, corydine （3）, protopine （4） and sinoacutine （5）. Oxomorphine alkaloid （5） was isolated from the genus Dicranostigma for the first time and the new compound structure （1） was elucidated by various spectroscopic methods including 2D NMR techniques （gCOSY, HMQC, HMBC and NOESY） and HRESI-MS.
