Kavitha Jakka, Gopalaiah Kovuru, Rajasekhar Dodda, Subbaraju Gottumukkala V
Department of Chemistry, Sri Venkateswara University, Tirupati-517 502, India.
J Nat Prod. 2003 Aug;66(8):1113-5. doi: 10.1021/np030142h.
An unusual secolignan glycoside, juspurpurin (1), and a new arylnaphthalene glycoside, justalakonin (2), together with eight known lignans were isolated from the whole plants of Justicia purpurea. Compound 1 is the first glycoside of a rare group of secolignans. The structures of the new compounds 1 and 2 were established using 1D and 2D NMR ((1)H-(1)H COSY, HMQC, and HMBC) spectral data and by chemical transformations.
从紫花爵床全草中分离得到一种不寻常的裂环木脂素苷紫花爵床苷（1）、一种新的芳基萘苷紫花拉孔苷（2）以及8个已知木脂素。化合物1是一类罕见裂环木脂素中的首个糖苷。通过一维和二维核磁共振谱（氢氢化学位移相关谱、异核多量子相干谱和异核多键相关谱）数据以及化学转化确定了新化合物1和2的结构。
