Abstract
Recently, the screening of many samples for drug discovery could be managed in a short time by a high throughput screening method. Unfortunately, natural products are not suitable for the high throughput screening method, but natural products are appealing as a screening source because of their abundant diversity. Accordingly, its very important to establish a method for doing natural product screening efficiently. An efficient elimination or identification method of known compounds for natural product screening is discussed, and our identification method for natural products is also reviewed.