New Pyrazole Alkaloids from the Root Bark of Newbouldia laevis

Adetunji J. Aladesanmi; Rene Nia; Adolf Nahrstedt

doi:10.1055/s-2006-957380

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Planta Med 1998; 64(1): 90-91
DOI: 10.1055/s-2006-957380

Letters

New Pyrazole Alkaloids from the Root Bark of Newbouldia laevis

Adetunji J. Aladesanmi¹ , Rene Nia¹ , Adolf Nahrstedt²

¹Department of Pharmacognosy, Faculty of Pharmacy, Obafemi Awolowo University, lle-lfe, Nigeria
²Institut für Pharmazeutische Biologie und Phytochemie, Westfälische Wilhelms-Universität, Münster, Germany

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Publication History

1997

1997

Publication Date:
04 January 2007 (online)

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Abstract

The root bark of Newbouldia laevis afforded withasomnine, 4′-hydroxywithasomnine, 4′-methoxywithasomnine, newbouldine, 4′-hydroxynewbouldine, and 4′-methoxynewbouldine. 4′-Methoxywithasomnine and 4′-methoxynewbouldine are new natural products.