Zahoor Aqib, Siddiqui Imran Nafees, Khan Afsar, Ahmad Viqar Uddin, Ahmed Amir, Hassan Zahid, Khan Saleha Suleman, Iqbal Shazia
H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi- 75270, Pakistan.
Nat Prod Commun. 2010 Jul;5(7):1099-102.
Studies on Conyza bonariensis (L.) Cronq. led to the isolation of two new glycosides trivially named as erigeside E and F (1-2), along with two new source compounds; benzyl-beta-D-glucopyranoside (3) and 2-phenylethyl-beta-D-glucopyranoside (4). Compounds 1, 3, and 4 are aromatic glycosides, while compound 2 is an alkyl glycoside. Their structures were elucidated through mass spectrometric, and 1D- and 2D-NMR spectroscopic techniques, including 1H NMR, 13C NMR, HMQC, HSQC and HMBC.