Stereoselective syntheses of 4-amino-aldoses, and chiral pyrrolidine derivatives from glycosylenamines
摘要:
The stereocontrolled synthesis of N-protected 4-amino-4-deoxy-D-galacto- and -L-arabino-pyranoses starting from glycosylenamines via aza-anhydropyranoses is described. The steroselective transformation of the intermediate aza-anhydropyranoses into chiral pyrrolidines is also reported. (C) 1997 Elsevier Science Ltd.