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245	1	0	_aNatural Products As Sources of New Drugs over the 30 Years from 1981 to 2010
490	0		_vJournal of Natural Products, 75(3), p.311-335, 2012
520	3		_aThis review is an updated and expanded version of the three prior reviews that were published in this journal in 1997, 2003, and 2007. In the case of all approved therapeutic agents, the time frame has been extended to cover the 30 years from January 1, 1981, to December 31, 2010, for all diseases worldwide, and from 1950 (earliest so far identified)to December 2010 for all approved antitumor drugs worldwide. We have continued to utilize our secondary subdivision of a "natural product mimic" or "NM" to join the original primary divisions and have added a new designation, "natural product botanical" or "NB", to cover those botanical "defined mixtures" that have now been recognized as drug entities by the FDA and similar organizations. From the data presented, the utility of natural products as sources of novel structures, but not necessarily the final drug entity, is still alive and well. Thus, in the area of cancer, over the time frame from around the 1940s to date, of the 175 small molecules, 131, or 74.8
700	1	2	_aNewman, D.J.
700	1	2	_aCragg, G.M.
856	4	0	_uhttps://drive.google.com/file/d/1uCA8PzpIdVv5lnGfXpVZl8RBjWmX6Tkj/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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