| abstract |
N-protected/N-substituted alpha-amino aldehydes, which are useful as pharmaceuticals and pharmaceutical intermediates, can be stored and shipped in a more stable form as N-protected/N-substituted-beta-amino hydroxy sulfonates which can be readily converted back into the aldehyde under mild conditions. The present invention relates to N-protected/N-substituted-beta-amino hydroxy sulfonates and their preparation and use. |