New process for the preparation of 9-amino-6-demethyl-6-deoxytetracycline

摘要

The invention relates to a novel method for producing [4S-(4alpha, 12aalpha)]-9-amino-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3, 10,12,12a-tetrahydroxy-1,11-dioxo- 2-naphthacenecarboxamide, hereinafter called 9-amino-6-demethyl-6-deoxytetracycline, which compound is a valuable intermediate for synthesis of tetracyclines.