Juspurpurin, an unusual secolignan glycoside from Justicia purpurea.
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.
Kavitha
Jakka
J
Department of Chemistry, Sri Venkateswara University, Tirupati-517 502, India.
Gopalaiah
Kovuru
K
Rajasekhar
Dodda
D
Subbaraju
Gottumukkala V
GV
D027901:Acanthaceae / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D006868:Hydrolysis; D007194:India; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D008745:Methylation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010946:Plants, Medicinal / Q000737:chemistry*
D006027:Glycosides; D017705:Lignans; C479847:juspurpurin