参考文献:
THE UNITED STATES GOVERNMENT as represented by THE DEPARTMENT OF HEALTH AND HUMAN SERVICES Patent: EP1676 A1, 2 Location in patent: Page 2 EP 1676 A1
参考文献:
Deka, Dibakar C. Purkayastha, Biswajit Paul, Maumita Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2 , vol. 2, # 1 p. 261 - 262