Absrmcr: AAL-toxins TAl 1 and TA2 2, host-specific toxins produced by Altemaria altemam, were. degraded to 2-rnethylbutanol, 3-methylnonan-1, 9diol and N-protected hminobutan- l,% diol, which were further converted to (R)-MTPA esters. These esters were correlated with synthetic samples by comparison of their 500 MHz 'H-NMR spectra. The remaining stereocenters were determhd by the comparison of lH-NMR spectra of Q and 7 derived ...
