【摘 要】
：
An efficient synthesis of α-D-GlcpNAc-(1→2)-[α-D-ManpNAc-(1→3)-]α-L-Rhap-(1→2)-α-L-Rhap-(1→3)-α-L-Rhap (1),the repeating unit of the O10 antigen from A
【机 构】
：
Key Lab of Pesticide Chemistry and Application Technology,Research Center for Eco-Environmental Scie
论文部分内容阅读
An efficient synthesis of α-D-GlcpNAc-(1→2)-[α-D-ManpNAc-(1→3)-]α-L-Rhap-(1→2)-α-L-Rhap-(1→3)-α-L-Rhap (1),the repeating unit of the O10 antigen from Acinetobacter baumannii was achieved via sequential assembly of the building blocks,pmethoxylphenyl 2,4-di-O-benzoyl-a-L-rhamnopyranoside (2);2-O-allyloxycarbonyl-3,4-di-O-benzoyl-α-L-rhanmopyranosyl trichloroacetimidate (3);4-methoxylphenyl 3-O-allyloxycarbonyl-4-O-benzoyl-α-L-rhamnopyranoside (4);2-azido-3-O-benzoyl-2-deoxy-4,6-O-isopropylidene-α-D-mannopyranosyl trichloroacetimidate (5);2-azido-3,4,6-tri-O-benzoyl-2-deoxy-α,β-D-glucopyrano syl trichloroacetimidate (6).The total yield of 1 from 4 was 4.7%.
其他文献
AIM: To investigate whether malignant esophageal stromaltumors contain PAS-positive patterned matrix-associatedvascular channels, which are lined by tumor cells
Two new terpenes,triptobenzene P (1) and wilforone (2) were isolated from Tripterygium wilfordii,as well as 10 known terpenes.Their structures were elucidated b
The phenomenon of particle interaction involved in pulmonary drug delivery belongs to a wide variety of disciplines of particle technology, in particular, fluid
AIM: To investigate whether human hepatocytes could proliferate after transplantation to normal immunocompetent rats treated with 2-acetaminofluorene or Retrors
AIM: To examine the role of Fibrinogen-like protein 2 (fgl2)/fibroleukin in tumor development. Fgl2 has been reported to play a vital role in the pathogenesis i
AIM: To investigate the anti-oxidant and anti-neutrophil recruitment effects of rectal d-alpha (d-α) tocopherol administration on mild and moderately active ul
Background Recent studies have shown that effective ingredients of Chinese herbs are used more and more widely in the treatment or co-treatment of cancers,howev
Background Aging of population in Macau has become a serious problem and we are diagnosing more and more Patients with prostate cancer.To investigate the effect
Although both primary biliary cirrhosis (PBC) and idiopathic thrombocytopenic purpura (ITP) are autoimmune diseases, the association of the 2 diseases is rare.