Relative stereochemistry and solution conformation of the novel paclitaxel-like antimitotic agent epothilone A
1996
Abstract A nearly complete set of 1 H 1 H coupling constants and NOEs were determined for the novel paclitaxel-like antimitotic agent epothilone A from phase sensitive DFQ COSY and NOESY experiments in 75% DMSO- d 6 /D 2 O. This data was employed as distance constraints for molecular modeling studies. Molecular dynamic simulations were carried out on a complete series of diastereoisomers, and the results show only two relative stereochemistries to be in agreement with the NOE data.
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