Fig. 1
From: Total synthesis and antimicrobial evaluation of natural albomycins against clinical pathogens
Chemical structures of albomycins δ1, δ2, and ε, and their synthetic strategies. The key disconnections involve a Pummerer reaction for nucleobase introduction and an aldol reaction to expand the side chain of thionucleoside. tBu tert-butyl, Bz benzoyl, Fmoc fluorenylmethyloxycarbonyl, PMB p-methoxybenzyl
