Structural revisions of some non-adjacent bis-tetrahydrofuran annonaceous acetogenins
- J Nat Prod. 1993 Jul;56(7):1095-100. doi: 10.1021/np50097a013.
- 1. Department of Medicinal Chemistry and Pharmacognosy, School of Pharmacy and Pharmacal Sciences, Purdue University, West Lafayette, Indiana 47907.
The relative stereochemistries of bullatalicin [1] and bullatalicinone [2] were partially reassigned based on COSY and relayed COSY spectra. The structures of annonins VIII [3], IV [4], and XVI [5] were revised and concluded as bullatalicin [1], bullatanocin [6], and squamostatin A [7], respectively.