Furthermore, it is over 25 years since taxol's structure was first published, and it was never patented, so there are no licensing problems. Thus many countries have set their sights on the market for taxol and are rushing to develop means of producing it in bulk.
加上紫杉醇由發表至今已超過二十五年，沒有專利權歸屬問題；許多國家已看好紫杉醇市場，競相投入大量生產紫杉醇的開發工作。