FIELD: organic chemistry and pharmacology.
SUBSTANCE: group of inventions is aimed at obtaining new intermediate compounds used in the synthesis of antibacterial aminoglycoside compounds. A method of preparing a compound of formula (7) comprising the following: (f) bringing a compound of formula (6) into contact with 
, where LG1 is the leaving group and where 
is a single bond or a double bond; wherein, optionally, a compound of formula (6) is prepared by contacting a compound of formula (5) with a PNZ deprotection reagent, wherein further optionally, a compound of formula (5) is obtained by contacting a compound of formula (4) with a reagent for introducing Boc-protection are disclosed. In addition, compounds of formulas (4) and (7) are disclosed.
EFFECT: group of inventions provides efficient preparation of intermediate compounds used in the synthesis of antibacterial aminoglycoside compounds.
10 cl, 9 dwg, 11 tbl, 8 ex
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