Chlorosulphation of amino sugars: synthesis of methyl 2-acetamido-4-amino-2,4,6-trideoxy-β-D-glucopyranoside (bacillosamine) from a D-glucosamine derivative

Chlorosulphation of methyl 2-deoxy-2-phthalimido-β-D-glucopyranoside 3 under controlled conditions provided either methyl 6-chloro-2,6-dideoxy-2-phthalimido-β-D-glucopyranoside 4 or methyl 4,6-dich...