Journal
TETRAHEDRON LETTERS
Volume 41, Issue 8, Pages 1205-1208Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(99)02172-3
Keywords
alkaloids; cytotoxines; nitroso compounds; cycloaddition
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A stereocontrolled approach to the proposed structure of lepadiformine has been achieved employing an intramolecular hetero Diels-Alder reaction of an N-acylnitroso compound, in which syn-face selectivity was controlled. The NMR data of the product synthesized based on this approach is not identical with those reported for natural lepadiformine. Thus, the proposed structure for natural lepadiformine must be revised. (C) 2000 Elsevier Science Ltd. All rights reserved.
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