【摘 要】
：
A new anthraquinone glycoside 1,along with a known anthraquinone glycoside aurantio-obtusin-6-O-β-D-glucopyranoside 2, were isolated from the seeds of Cassia o
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
A new anthraquinone glycoside 1,along with a known anthraquinone glycoside aurantio-obtusin-6-O-β-D-glucopyranoside 2, were isolated from the seeds of Cassia obtusifolia.On the basis of spectral and chemical evidences,the structure of 1 was established as 1-demethylaurantio-obtusin-2-O-β-D-glucopyranoside.Moreover,the ~(13)C NMR of 2 was assigned totally and correctly for the first time based on the two-dimensional NMR.
A new anthraquinone glycoside 1, along with a known anthraquinone glycoside aurantio-obtusin-6-O-β-D-glucopyranoside 2, were isolated from the seeds of Cassia obtusifolia. On the basis of spectral and chemical evidences, the structure of 1 was established as 1-demethylaurantio-obtusin-2-O-β-D-glucopyranoside. Moreover, the ~ 13C NMR of 2 was assigned totally and correctly for the first time based on the two-dimensional NMR.
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