Constituents of Argemone species

Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221 005, Uttar Pradesh, India E-mail : pandeyvb@gmail.com Manuscript received 18 February 2010, revised 04 June 2010, accepted 14 June 2010 The flavones, quercetin and rutin, and the alkaloid 1-tetrahydrocoptisine have been isolated respectively from the whole plant or Argemo11e mexicana and Argemone ochroleuca. Their structures have been established by various spectral data. This is the first report of occurrence of quercetin and rutin in A. mexicana and 1-tetrahydrocoptisine in A. ochroleuca