SCHEDULED MAINTENANCE
Four isoquinolone alkaloids, N-methylcorydaldine, 8a oxyhydrastinine 8b, 6,7-dimethoxy-2-methylisocarbostyril 9a and doryanine 9b, have been efficiently synthesized from phenyl vinyl sulfoxide via the Pummerer type rearrangement as a key step.
A. W. M. Lee, W. H. Chan and E. T. T. Chan, J. Chem. Soc., Perkin Trans. 1, 1992, 309 DOI: 10.1039/P19920000309
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