954390-26-2Relevant articles and documents
Synthesis of O-linked Cyclitol Analogues of Gilvocarcin M and Antibacterial Activity
Sharif, Ehesan U.,Shi, Pei,O'Doherty, George A.
, p. 394 - 400 (2021/04/09)
Two unnatural regioisomeric glycosylated Gilvocarcin analogues were proposed as model compounds to study the origin behind the biosynthetic development of the Gilvocarcins, a class of bioactive C-aryl glycoside natural products. More specifically, the origins behind the proposed O- to C-glycoside migration in the evolution of the biosynthesis for these classes of Angucycline antibiotic natural products. For stability reasons a 5a-carbasugar motif was used to mimic the sugar portion of the molecule and of synthetic ease the proposed abiotic rearrangement move the sugar analogue along with its O-glycoside linkage. The two proposed regioisomeric analogues were synthesized by a regio-divergent synthetic pathway and featured a Mitsunobu-like invertive cyclictolization reaction to install the carbasugar motif. The two regioisomeric Gilvocarcin analogues were evaluated as antibiotic with Gilvocarcin M as a control. Only one of the two isomers showing weak antibiotic activity as compared to Gilvocarcin M.