Probing the Mycobacterial Trehalome with Bioorthogonal Chemistry
作者:Benjamin M. Swarts、Cynthia M. Holsclaw、John C. Jewett、Marina Alber、Douglas M. Fox、M. Sloan Siegrist、Julie A. Leary、Rainer Kalscheuer、Carolyn R. Bertozzi
DOI:10.1021/ja3062419
日期:2012.10.3
Mycobacteria, including the pathogen Mycobacterium tuberculosis, use the non-mammalian disaccharide trehalose as a precursor for essential cell-wall glycolipids and other metabolites. Here we describe a strategy for exploiting trehalose metabolic pathways to labelglycolipids in mycobacteria with azide-modified trehalose (TreAz) analogues. Subsequent bioorthogonal ligation with alkyne-functionalized
Total Synthesis of Emmyguyacins A and B, Potential Fusion Inhibitors of Influenza Virus
作者:Santanu Jana、Vikram A. Sarpe、Suvarn S. Kulkarni
DOI:10.1021/acs.orglett.8b03073
日期:2018.11.2
virus. Herein, we report the first total synthesis and structure confirmation of emmyguyacins A and B. Our efficientroute, which involves regioselective functionalization of trehalose, allows rapid access to adequate amounts of chemically pure emmyguyacin analogues including the desoxylate derivatives for SAR studies.
An improved synthesis of 4-azido-4-deoxy- and 4-amino-4-deoxy-α,α-trehalose and their epimers
作者:Rafik W. Bassily、Ramadan I. El-Sokkary、Basim Azmy Silwanis、Asaad S. Nematalla、Mina A. Nashed
DOI:10.1016/0008-6215(93)84215-r
日期:1993.2
esterification of the eight hydroxyl groups of α,α-trehalose is HO-6,6′ > HO-2,2′ > HO-3,3′ > HO-4,4′. Under the appropriate conditions of benzoylation, the heptabenzoate with HO-4′ free was obtained in good yield (58%), along with the octabenzoate and the hexabenzoate having HO-4,4′ free. The readily isolated heptabenzoate was a convenient starting material for the synthesis of 4-azido-4-deoxy- (84%) and 4-amino-4-deoxy-α-