108788-49-4Relevant academic research and scientific papers
Chromium-mediated stereoselective synthesis of carbohydrate-derived (E)-α,β-unsaturated esters or amides
Rodriguez-Solla, Humberto,Concellon, Carmen,Blanco, Elena G.,Sarmiento, Juan Ignacio,Diaz, Pamela,Soengas, Raquel G.
experimental part, p. 5461 - 5465 (2011/08/09)
A chromium-mediated novel synthesis of carbohydrate-derived di- and trisubstituted (E)-α,β-unsaturated esters or amides from a range of dichloroesters or amides and a variety of sugar aldehydes is reported. The process took place with total stereoselectiv
Conjugate addition of amines to sugar derived olefinic esters: Synthesis of glycosylated amino esters as DNA topoisomerase-II inhibitors
Khan,Tripathi,Tiwari,Mishra,Reddy,Saxena
, p. 591 - 604 (2007/10/03)
Conjugate addition of amines to olefinic esters derived from sugars leading to formation of glycosylated amino esters in a stereoselective manner is described. Some of the synthesized compounds possess DNA topoisomerase-II enzyme inhibitory activities at low concentrations.
Synthesis of glycosylated β-amino acids as new class of antitubercular agents
Tripathi,Tripathi,Tiwari,Bala, Laxmi,Sinha,Srivastava,Srivastava,Srivastava
, p. 773 - 781 (2007/10/03)
A series of glycosylated β-amino acids was prepared and evaluated against Mycobacterium tuberculosis, M. avium, M. fortuitum and M. smegmatis. The compounds were designed to mimic the enzyme D-alanine racemase and glycosyl transferase involved in the bios
Wittig-type olefination catalyzed by PEG-telluride
Huang, Zheng-Zheng,Ye, Song,Xia, Wei,Yu, Yi-Hua,Tang, Yong
, p. 3096 - 3103 (2007/10/03)
Soluble poly(ethylene glycol) (PEG)-supported telluride 2 was designed and synthesized for catalytic Wittig-type reactions. It was found that the catalytic loading could be reduced from 20 to 2 mol % by the introduction of PEG (even to 0.5 mol % when some telluride salts were used as the catalyst). Under the catalytic reaction conditions, a wide variety of aldehydes with different structures could react with bromoacetate to afford β-substituted or α,β-disubstituted unsaturated esters in high yields with excellent E-stereoselectivity. The modified process, by using sodium bisulfite instead of triphenyl phosphite, represented a very simple product isolation procedure. The roles of PEG for promoting the ylide formation and stabilizing the catalytic species were disclosed. The mechanism was also studied.
Chiron approach to callipeltin A: First synthesis of fully protected (2R,3R,4S)-4,7-diamino-2,3-dihydroxy heptanoic acid
Chandrasekhar,Ramachandar,Rao
, p. 2315 - 2321 (2007/10/03)
Stereoselective synthesis of protected (2R,3R,4S)-4,7-diamino-2,3-dihyroxy heptanoic acid, which is present as a side chain attached to the main macrocyclic depsidecapeptide backbone of callipeltin A (a potent, cytotoxic, anti-HIV and anti-fungal agent) s
Intramolecular Michael addition of benzylamine to sugar derived α,β-unsaturated ester: A new diastereoselective synthesis of a higher homologue of 1-deoxy-L-ido-nojirimycin
Desai, Vijaya N.,Saha, Nabendu N.,Dhavale, Dilip D.
, p. 1719 - 1720 (2007/10/03)
The diastereoselective intramolecular Michael addition of the benzylamine generated in situ from hemiacetal 3 leads to the lactone 4a with the required homoazasugar ring skeleton; reduction of the lactone functionality and removal of the protecting groups
Total Synthesis of Griseolic Acid Derivatives from D-Glucose
Tulshian, Deen,Doll, Ronald J.,Stansberry, Mary F.,McPhail, Andrew T.
, p. 6819 - 6822 (2007/10/02)
Griseolic acid, 1, is a potent nonselective cyclic nucleotide-phosphodiesterase inhibitor isolated from Streptomyces griseoaurantiacus.Recently, preparation of several griseolic acid derivatives, including 3, has been reported.We have completed the chiral
