Synthetic approaches to bicyclomycin I. Prepration of monocylic intermediates by retrograde Michael cleavage of 6-alkyl-6-methoxyhexahydro-3H-thiazolo [3,4-a]pyrazine-5,8-diones.

@article{Dunkerton1980SyntheticAT,
  title={Synthetic approaches to bicyclomycin I. Prepration of monocylic intermediates by retrograde Michael cleavage of 6-alkyl-6-methoxyhexahydro-3H-thiazolo [3,4-a]pyrazine-5,8-diones.},
  author={L. Dunkerton and R. M. Ahmed},
  journal={Tetrahedron Letters},
  year={1980},
  volume={21},
  pages={1803-1806}
}
Abstract The syntheses of N-protected-3-(hydroxypropyl)-3-methoxy-6-alkylidine piperazine-2,5-diones are described, in relation to an approach to bicyclomycin. A chemoselective Grignard reaction and a novel diastereoselective retrograde Michael cleavage highlight the sequence. 
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