11-Isopropylcryptolepine: A novel alkaloid isolated from cryptolepis sanguinolenta characterized using submicro NMR

Hadden1, Sharaf, Guido

  • 1Pharmacia & Upjohn, Pharmaceutical Development, Rapid Structure Characterization Group, Kalamazoo, Michigan 49001-0199, Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt,