参考文献:
Dahnke, Karl Robert Lin, Ho-Shen Richett, Michael Enrico Shih, Chuan Wang, Q May Zhang, Bo Patent: US28/3682 A, 28 Location in patent: Page/Page column 26
参考文献:
Rahman, Loay K. A. Scrowston, Richard M. Journal of the Chemical Society, Perkin Transactions : Organic and Bio-Organic Chemistry (972-999), 984 , # 3 p. 385 - 39